{"id":47,"date":"2026-08-22T09:53:27","date_gmt":"2026-08-22T01:53:27","guid":{"rendered":"https:\/\/decagrammaton.xyz\/?p=47"},"modified":"2026-09-12T09:54:25","modified_gmt":"2026-09-12T01:54:25","slug":"47","status":"publish","type":"post","link":"https:\/\/decagrammaton.xyz\/?p=47","title":{"rendered":"03-C\u8bed\u8a00\u53d8\u91cf\u548c\u6570\u636e\u7c7b\u578b(\u7eed\u96c6)"},"content":{"rendered":"\n
\n\n\n\n

\u63a5\u4e0a\u96c6\u6211\u4eec\u7ee7\u7eed<\/p>\n\n\n\n

\n\n\n\n

\u5e38\u91cf<\/h2>\n\n\n\n

\u5e38\u91cf:\u7a0b\u5e8f\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u80fd\u4fee\u6539\u7684\uff0c\u5e38\u89c1\u7684\u6709\u5b57\u9762\u503c\u5e38\u91cf<\/p>\n\n\n\n

\u5728C\u8bed\u8a00\u4e2d\uff0c\u5e38\u91cf\u662f\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u503c\u4e0d\u80fd\u88ab\u6539\u53d8\u7684\u91cf\u3002\u6b63\u786e\u4f7f\u7528\u5e38\u91cf\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\uff08\u6d88\u9664\u201c\u9b54\u672f\u6570\u5b57\u201d\uff09\uff0c\u8fd8\u80fd\u4fbf\u4e8e\u7ef4\u62a4\u548c\u51cf\u5c11\u9519\u8bef\u3002<\/p>\n\n\n\n

C\u8bed\u8a00\u63d0\u4f9b\u4e864\u79cd\u5b9a\u4e49\u5e38\u91cf\u7684\u65b9\u5f0f\uff0c\u6bcf\u79cd\u65b9\u5f0f\u5728\u5185\u5b58\u3001\u7c7b\u578b\u68c0\u67e5\u548c\u9002\u7528\u573a\u666f\u4e0a\u90fd\u6709\u663e\u8457\u533a\u522b\u3002\u4ee5\u4e0b\u662f\u6df1\u5ea6\u5bf9\u6bd4\u548c\u4f7f\u7528\u6307\u5357\uff1a<\/p>\n\n\n\n

    \n
  1. \u5b57\u9762\u5e38\u91cf\uff08\u76f4\u63a5\u91cf\uff09 \u8fd9\u662f\u6700\u76f4\u89c2\u7684\u5f62\u5f0f\uff0c\u76f4\u63a5\u5728\u4ee3\u7801\u4e2d\u5199\u6570\u503c\u6216\u5b57\u7b26\u3002<\/li>\n<\/ol>\n\n\n\n
    <\/a>int<\/span> a =<\/span> 100<\/span>;<\/span>      \/\/ 100 \u662f\u6574\u578b\u5b57\u9762\u91cf<\/span><\/span>\n<\/a>float<\/span> b =<\/span> 3.14<\/span>;<\/span>   \/\/ 3.14 \u662f\u6d6e\u70b9\u5b57\u9762\u91cf<\/span><\/span>\n<\/a>char<\/span> c =<\/span> 'A'<\/span>;<\/span>     \/\/ 'A' \u662f\u5b57\u7b26\u5b57\u9762\u91cf<\/span><\/span>\n<\/a><\/span>\n<\/a>char<\/span> *<\/span>s =<\/span> \"Hello\"<\/span>;<\/span> \/\/ \"Hello\" \u662f\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff08\u5b58\u50a8\u5728\u53ea\u8bfb\u6570\u636e\u6bb5\uff0c\u4fee\u6539\u5b83\u4f1a\u5bfc\u81f4\u6bb5\u9519\u8bef\uff09<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
    \u6ce8\u610f\uff1a\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u672c\u8d28\u662f\u53ea\u8bfb\u7684\uff0c\u5c1d\u8bd5 s[0]=\u2018h\u2019; \u4f1a\u5f15\u53d1\u8fd0\u884c\u65f6\u5d29\u6e83\u3002<\/p>\n\n\n\n
      \n
    1. #define \u5b8f\u5e38\u91cf\uff08\u9884\u5904\u7406\u9636\u6bb5\uff09
      \u7531\u9884\u5904\u7406\u5668\u5904\u7406\uff0c\u5728\u7f16\u8bd1\u524d\u8fdb\u884c\u7eaf\u6587\u672c\u66ff\u6362\u3002\u5b83\u4e0d\u5360\u7528\u8fd0\u884c\u65f6\u5185\u5b58\uff08\u4e0d\u5206\u914d\u53d8\u91cf\u5730\u5740\uff09\u3002<\/li>\n<\/ol>\n\n\n\n
      <\/a>#define MAX_SIZE <\/span>100<\/span><\/span>\n<\/a>#define PI <\/span>3.14159<\/span><\/span>\n<\/a>#define SQUARE<\/span>(<\/span>x<\/span>)<\/span> <\/span>((<\/span>x<\/span>)*(<\/span>x<\/span>))<\/span> <\/span>\/\/ \u6ce8\u610f\uff1a\u5b8f\u5bb9\u6613\u4ea7\u751f\u526f\u4f5c\u7528\uff0c\u52a1\u5fc5\u52a0\u62ec\u53f7<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      \u4f18\u70b9\uff1a\u4efb\u4f55\u5730\u65b9\u90fd\u80fd\u7528\uff0c\u53ef\u7528\u4e8e\u5b9a\u4e49\u6570\u7ec4\u957f\u5ea6\uff08\u7f16\u8bd1\u671f\u5e38\u91cf\uff09\u3002\n\u81f4\u547d\u7f3a\u70b9\uff1a\u6ca1\u6709\u7c7b\u578b\u68c0\u67e5\uff0c\u7f16\u8bd1\u5668\u4e0d\u68c0\u67e5\u7c7b\u578b\uff0c\u5bb9\u6613\u56e0\u7c7b\u578b\u4e0d\u5339\u914d\u4ea7\u751f\u9690\u853d\nbug\uff0c\u4e14\u8c03\u8bd5\u65f6\u770b\u4e0d\u5230\u7b26\u53f7\uff08\u5b8f\u5df2\u88ab\u66ff\u6362\uff09\u3002<\/p>\n\n\n\n
        \n
      1. const \u5173\u952e\u5b57\uff08\u7f16\u8bd1\u9636\u6bb5\uff09\u2014\u2014 \u73b0\u4ee3C\u7684\u63a8\u8350\u7528\u6cd5 const
        \u4fee\u9970\u7684\u53d8\u91cf\u5177\u6709\u7c7b\u578b\uff0c\u7f16\u8bd1\u65f6\u4f1a\u8fdb\u884c\u7c7b\u578b\u5b89\u5168\u68c0\u67e5\uff0c\u5e76\u4e14\u6709\u4f5c\u7528\u57df\u9650\u5236\u3002<\/li>\n<\/ol>\n\n\n\n
        <\/a>const<\/span> int<\/span> MAX_SIZE =<\/span> 100<\/span>;<\/span>   \/\/ \u6709\u7c7b\u578b\uff08int\uff09\uff0c\u6709\u4f5c\u7528\u57df<\/span><\/span>\n<\/a>const<\/span> double<\/span> PI =<\/span> 3.14159<\/span>;<\/span><\/span>\n<\/a>\u91cd\u70b9\u8bef\u533a\uff08C\u8bed\u8a00\u4e0eC++<\/span>\u7684\u533a\u522b\uff09\uff1a<\/span>\n<\/a>\u5728 C\u8bed\u8a00 \u4e2d\uff0cconst \u4fee\u9970\u7684\u53d8\u91cf\u4e0d\u662f\u7f16\u8bd1\u671f\u5e38\u91cf\uff0c\u800c\u662f\u53ea\u8bfb\u53d8\u91cf\u3002\u56e0\u6b64\uff1a<\/span>\n<\/a><\/span>\n<\/a>\u274c \u9519\u8bef\uff1aconst int<\/span> N =<\/span> 10<\/span>;<\/span> int<\/span> arr[<\/span>N];<\/span> \uff08\u5728C\u6807\u51c6\u4e2d\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u7f16\u8bd1\u9519\u8bef\uff0c\u56e0\u4e3a\u6570\u7ec4\u957f\u5ea6\u5fc5\u987b\u4e3a\u5e38\u91cf\u8868\u8fbe\u5f0f\u3002\u90e8\u5206\u7f16\u8bd1\u5668\u652f\u6301VLA\u53ef\u53d8\u957f\u6570\u7ec4\uff0c\u4f46\u90a3\u662f\u8fd0\u884c\u65f6\u7279\u6027\uff0c\u4e0d\u63a8\u8350\u4f9d\u8d56\uff09\u3002<\/span>\n<\/a><\/span>\n<\/a>\u2705 \u6b63\u786e\uff1a\u6570\u7ec4\u957f\u5ea6\u8bf7\u7528 #define \u6216 enum\u3002<\/span>\n<\/a><\/span>\n<\/a>const<\/span> \u7684\u5f3a\u608d\u4e4b\u5904\u5728\u4e8e\u4fee\u9970\u6307\u9488\uff08\u5fc5\u8003\u70b9\uff09\uff1a<\/span>\n<\/a><\/span>\n<\/a>\u5199\u6cd5  \u542b\u4e49  \u6307\u9488\u672c\u8eab\u53ef\u6539\uff1f \u6307\u5411\u7684\u6570\u636e\u53ef\u6539\uff1f<\/span>\n<\/a>const<\/span> int<\/span> *<\/span>p;<\/span>   \u6307\u5411\u5e38\u91cf\u7684\u6307\u9488\uff08\u5e95\u5c42const\uff09    \u2705 \u53ef\u4ee5    \u274c \u4e0d\u53ef\u4ee5<\/span>\n<\/a>int<\/span> *<\/span> const<\/span> p;<\/span>  \u5e38\u91cf\u6307\u9488\uff08\u9876\u5c42const\uff09   \u274c \u4e0d\u53ef\u4ee5   \u2705 \u53ef\u4ee5<\/span>\n<\/a>const<\/span> int<\/span> *<\/span> const<\/span> p;<\/span>    \u6307\u5411\u5e38\u91cf\u7684\u5e38\u91cf\u6307\u9488   \u274c \u4e0d\u53ef\u4ee5   \u274c \u4e0d\u53ef\u4ee5<\/span>\n<\/a>\u8bb0\u5fc6\u53e3\u8bc0\uff1aconst \u5728 *<\/span> \u5de6\u8fb9\u4fee\u9970\u6570\u636e\uff0c\u5728 *<\/span> \u53f3\u8fb9\u4fee\u9970\u6307\u9488\u672c\u8eab\u3002<\/span><\/code><\/pre><\/div>\n\n\n\n
          \n
        1. enum \u679a\u4e3e\u5e38\u91cf\uff08\u6574\u578b\u4e13\u7528\uff09
          \u7528\u4e8e\u5b9a\u4e49\u4e00\u7ec4\u5177\u6709\u540d\u5b57\u7684\u6574\u578b\u5e38\u91cf\uff0c\u975e\u5e38\u9002\u5408\u72b6\u6001\u7801\u3001\u6807\u5fd7\u4f4d\u3002<\/li>\n<\/ol>\n\n\n\n
          <\/a>enum<\/span> Color {<\/span> RED =<\/span> 0<\/span>,<\/span> GREEN,<\/span> BLUE };<\/span> \/\/ GREEN \u81ea\u52a8\u4e3a 1\uff0cBLUE \u4e3a 2<\/span><\/span>\n<\/a>enum<\/span> Status {<\/span> SUCCESS =<\/span> 1<\/span>,<\/span> FAIL =<\/span> -<\/span>1<\/span> };<\/span><\/span>\n<\/a><\/span>\n<\/a>\/\/ \u5b83\u662f\u7f16\u8bd1\u671f\u5e38\u91cf\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528\u4f5c\u6570\u7ec4\u5927\u5c0f\uff08enum { SIZE = 10 }; int arr[SIZE];\uff09\u3002<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
          \u76f8\u6bd4 #define\uff0c\u679a\u4e3e\u4f1a\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\uff0c\u4e14\u8c03\u8bd5\u5668\u80fd\u663e\u793a\u53d8\u91cf\u540d\u3002<\/p>\n\n\n\n
            \n
          1. \u6838\u5fc3\u9009\u62e9\u6307\u5357\uff08\u4ec0\u4e48\u65f6\u5019\u7528\u54ea\u4e2a\uff1f\uff09 \u573a\u666f \u63a8\u8350\u65b9\u6848 \u539f\u56e0 \u5b9a\u4e49\u6570\u7ec4\u957f\u5ea6 \/
            Case \u6807\u7b7e #define \u6216 enum \u5fc5\u987b\u662f\u7f16\u8bd1\u671f\u5e38\u91cf\uff08C\u8bed\u8a00\u4e2d const \u8fbe\u4e0d\u5230\uff09
            \u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u3001\u7ed3\u6784\u4f53\u7b49\u590d\u6742\u7c7b\u578b const \u6709\u7c7b\u578b\u68c0\u67e5\uff0c\u4f5c\u7528\u57df\u53ef\u63a7\uff0c\u66f4\u5b89\u5168
            \u4e00\u7ec4\u76f8\u5173\u7684\u6574\u6570\uff08\u5982\u72b6\u6001\u7801\uff09 enum \u8bed\u4e49\u6e05\u6670\uff0c\u81ea\u52a8\u9012\u589e\uff0c\u8c03\u8bd5\u53cb\u597d
            \u5168\u5c40\u5171\u4eab\u5e38\u91cf\uff08\u8de8\u6587\u4ef6\uff09 .h \u6587\u4ef6\u4e2d\u7528 extern const int GLOBAL_VAL;\uff0c\u5728 .c
            \u6587\u4ef6\u4e2d\u5b9a\u4e49 \u907f\u514d\u5b8f\u6c61\u67d3\u5168\u5c40\u547d\u540d\u7a7a\u95f4\uff0c\u4e14\u4fbf\u4e8e\u94fe\u63a5<\/li>\n\n\n\n
          2. \u8fdb\u9636\u6280\u5de7\uff1aconst \u4fee\u9970\u51fd\u6570\u53c2\u6570
            \u8fd9\u662f\u5de5\u7a0b\u4e2d\u6700\u5e38\u7528\u7684\u201c\u5e38\u91cf\u201d\u7528\u6cd5\uff0c\u7528\u4e8e\u4fdd\u62a4\u4f20\u5165\u7684\u6570\u636e\u4e0d\u88ab\u51fd\u6570\u4fee\u6539\uff1a<\/li>\n<\/ol>\n\n\n\n
            <\/a>\/\/ \u544a\u8bc9\u8c03\u7528\u8005\uff0c\u8fd9\u4e2a\u51fd\u6570\u4e0d\u4f1a\u4fee\u6539 str \u6307\u5411\u7684\u5185\u5bb9<\/span><\/span>\n<\/a>size_t<\/span> my_strlen(<\/span>const<\/span> char<\/span> *<\/span>str)<\/span> {<\/span> <\/span>\n<\/a>    \/\/ str++ \u662f\u53ef\u4ee5\u7684\uff08\u6307\u9488\u672c\u8eab\u53ef\u53d8\uff09\uff0c\u4f46 *str = 'x' \u4f1a\u62a5\u9519<\/span><\/span>\n<\/a>    while<\/span> (*<\/span>str)<\/span> str++;<\/span> <\/span>\n<\/a>    return<\/span> str -<\/span> original;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
            \u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/h2>\n\n\n\n
            \n
            \u8fd9\u4e2a\u662f\u4e00\u4e2a\u98ce\u9669\u64cd\u4f5c\uff0c\u53ef\u80fd\u4f1a\u4e22\u5931\u7cbe\u5ea6<\/p>\n<\/div>\n\n\n\n
            \u6709\u4e09\u79cd\u60c5\u51b5\u5206\u522b\u5982\u4e0b<\/p>\n\n\n\n
            <\/a>float<\/span> a =<\/span> 10.5<\/span>;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> a  \/\/b=10<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
            <\/a>float<\/span> a =<\/span> 10.3<\/span>;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> (<\/span>int<\/span>)<\/span>a;<\/span> \/\/b=10<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
            <\/a>int<\/span> a =<\/span> 50000<\/span>;<\/span><\/span>\n<\/a>short<\/span> b =<\/span> a\/\/\u4f1a\u6570\u636e\u6ea2\u51fa<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
            \u5360\u4f4d\u7b26<\/h2>\n\n\n\n
            %d %c %p %s<\/p>\n\n\n\n
            \u7528\u6cd5:<\/p>\n\n\n\n
              \n
            1. \u9650\u5b9a\u5bbd\u5ea6(\u9ed8\u8ba4\u5411\u53f3\u5bf9\u9f50)<\/li>\n<\/ol>\n\n\n\n
              <\/a>printf(<\/span>\"<\/span>%5d<\/span>\"<\/span>,<\/span>123<\/span>);<\/span>\/\/\u8f93\u51fa\u7ed3\u679c\uff1a\"  123\"\uff08\u524d\u9762\u67092\u4e2a\u7a7a\u683c\uff0c\u603b\u5bbd\u5ea6\u4e3a5\uff09<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
              \u5411\u5de6\u5bf9\u9f50<\/p>\n\n\n\n
              <\/a>printf(<\/span>\"<\/span>%-5d<\/span>\"<\/span>,<\/span>123<\/span>);<\/span>\u8f93\u51fa\u7ed3\u679c\uff1a\"123 \"<\/span>\uff08\u540e\u9762\u67092<\/span>\u4e2a\u7a7a\u683c\uff0c\u603b\u5bbd\u5ea6\u4e3a5<\/span>\uff09<\/span><\/code><\/pre><\/div>\n\n\n\n
                \n
              1. \u9650\u5b9a\u5c0f\u6570\u4f4d\u6570<\/li>\n<\/ol>\n\n\n\n
                <\/a>printf(<\/span>\"<\/span>%.2f<\/span>\"<\/span>,<\/span>0.5<\/span>);<\/span>\/\/\u8f93\u51fa\u7684\u662f0.50,\u53d6\u503c\u5c0f\u6570\u70b9\u540e2\u4f4d<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u8fd9\u4e9b\u53ef\u4ee5\u7ec4\u5408\u4f7f\u7528<\/p>\n\n\n\n
                <\/a>printf(<\/span>\"<\/span>%6.2d<\/span>\"<\/span>,<\/span>0<\/span>);<\/span>   \/\/ \u8f93\u51fa \"     00\"\uff084\u4e2a\u7a7a\u683c + 00\uff09<\/span><\/span>\n<\/a>printf(<\/span>\"<\/span>%6.2d<\/span>\"<\/span>,<\/span>123<\/span>);<\/span> \/\/ \u8f93\u51fa \"   123\"\uff083\u4e2a\u7a7a\u683c + 123\uff0c\u56e0\u4e3a\u7cbe\u5ea62\u4e0d\u5f71\u54cd3\u4f4d\u6570\uff09<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                scanf\u8f93\u5165\u51fd\u6570\u7684\u7528\u6cd5<\/h2>\n\n\n\n
                \u4f7f\u7528\u4f8b:<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 0<\/span>;<\/span><\/span>\n<\/a>scanf(<\/span>\"<\/span>%d<\/span>\"<\/span>,&<\/span>a);<\/span> \/\/\u5728\u952e\u76d8\u8f93\u5165\u6574\u6570\u503c\u6765\u8d4b\u503c\u7ed9a,\"&\"\u662f\u53d6\u5730\u5740\u7b26<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u53ef\u4e00\u6b21\u6027\u4f7f\u7528\u591a\u4e2a\u5b57\u7b26<\/p>\n\n\n\n
                <\/a>int<\/span> age;<\/span><\/span>\n<\/a>int<\/span> height;<\/span><\/span>\n<\/a>float<\/span> time;<\/span><\/span>\n<\/a>char<\/span> name[<\/span>20<\/span>];<\/span><\/span>\n<\/a>scanf(<\/span>\"<\/span>%d<\/span> <\/span>%d<\/span> <\/span>%f<\/span> <\/span>%s<\/span>\"<\/span>,&<\/span>age,&<\/span>height,&<\/span>time,<\/span>name);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                scanf \u8fd4\u56de\u503c<\/h3>\n\n\n\n
                \u542b\u4e49\uff1a\u6b63\u5e38\u60c5\u51b5\u4e0b\u8fd4\u56de\u6210\u529f\u8bfb\u53d6\u7684\u53d8\u91cf\u4e2a\u6570<\/p>\n\n\n\n
                  \u65e0\u6570\u636e\u8bfb\u53d6\uff1a\u5982\u679c\u672a\u80fd\u8bfb\u53d6\u5982\u4f55\u9879\u6216\u5339\u914d\u5931\u8d25 \u5219\u8fd4\u56de0\n\n  \u6587\u4ef6\u7ed3\u675f\uff1a\u5982\u679c\u5728\u6210\u529f\u8bfb\u53d6\u4efb\u4f55\u6570\u636e\u4e4b\u524d\uff0c\u53d1\u751f\u4e86\u8bfb\u53d6\u9519\u8bef\u6216\u9047\u5230\u8bfb\u53d6\u5230\u6587\u4ef6\u7ed3\u5c3e\uff0c\u5219\u8fd4\u56de\u5e38\u91cf EOF(-1) <\/code><\/pre>\n\n\n\n
                \n
                EOF:end of flie \u662f\u6587\u4ef6\u7ed3\u675f\u6807\u5fd7<\/p>\n<\/div>\n\n\n\n
                \u4f7f\u7528\u4f8b\uff1a<\/p>\n\n\n\n
                <\/a>int<\/span> a,<\/span>b;<\/span><\/span>\n<\/a>float<\/span> f;<\/span><\/span>\n<\/a>int<\/span> r =<\/span> scanf(<\/span>\"<\/span>%d<\/span> <\/span>%d<\/span> <\/span>%f<\/span>\"<\/span>,&<\/span>a,&<\/span>b,&<\/span>f);<\/span><\/span>\n<\/a>printf(<\/span>\"r=<\/span>%d<\/span>\"<\/span>,<\/span>r);<\/span>\/\/\u8fd4\u56de\u6210\u529f\u8bfb\u53d6\u7684\u53d8\u91cf\u4e2a\u6570 3<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u6309 ctrl+z \u53ef\u63d0\u524d\u7ed3\u675f\u8f93\u5165 :::warming \u6709\u683c\u5f0f\u9700\u8981\u4e25\u683c\u6309\u7167\u8f93\u5165 :::<\/p>\n\n\n\n
                \u8fd0\u7b97\u7b26<\/h2>\n\n\n\n
                \u4e00\u822c\u8fd0\u7b97\u7b26<\/h3>\n\n\n\n
                \u201c + \u201d \u201c - \u201d \u201c * \u201d \u201c \/ \u201d \u201c % \u201d<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span>1<\/span>+<\/span>2<\/span>;<\/span>\/\/\u666e\u901a\u6574\u6570\u52a0\u6cd5\uff0c1 + 2 = 3\uff0c\u7ed3\u679c\u5b58\u5165 int \u578b\u53d8\u91cf a\uff0c\u6240\u4ee5 a = 3\u3002<\/span><\/span>\n<\/a>int<\/span> b =<\/span>3<\/span>-<\/span>2<\/span>;<\/span>\/\/\u666e\u901a\u6574\u6570\u51cf\u6cd5\uff0c3 - 2 = 1\uff0cb = 1\u3002<\/span><\/span>\n<\/a>int<\/span> c =<\/span>3<\/span>*<\/span>5<\/span>;<\/span>\/\/\u666e\u901a\u6574\u6570\u4e58\u6cd5\uff0c3 * 5 = 15\uff0cc = 15\u3002<\/span><\/span>\n<\/a>float<\/span> d =<\/span> 6<\/span>\/<\/span>4<\/span>;<\/span>\/\/\u64cd\u4f5c\u6570 6 \u548c 4 \u90fd\u662f int \u7c7b\u578b\uff0c\u6240\u4ee5 \/ \u6267\u884c\u7684\u662f \u6574\u6570\u9664\u6cd5\uff0c\u7ed3\u679c\u76f4\u63a5\u622a\u65ad\u5c0f\u6570\u90e8\u5206\uff08\u5411\u96f6\u53d6\u6574\uff09\uff0c\u5373 6 \/ 4 = 1\uff08\u800c\u4e0d\u662f 1.5\uff09\u3002\u7136\u540e\u8fd9\u4e2a\u6574\u6570 1 \u88ab\u9690\u5f0f\u8f6c\u6362\u4e3a float \u7c7b\u578b\uff0c\u8d4b\u503c\u7ed9 d\uff0c\u56e0\u6b64 d \u7684\u5b9e\u9645\u503c\u662f 1.0f\u3002\u82e5\u60f3\u5f97\u5230 1.5\uff0c\u5fc5\u987b\u8ba9\u81f3\u5c11\u4e00\u4e2a\u64cd\u4f5c\u6570\u4e3a\u6d6e\u70b9\u6570\uff0c\u4f8b\u5982\uff1afloat d = 6.0 \/ 4; \uff086.0 \u662f double\uff0c\u9664\u6cd5\u7ed3\u679c\u63d0\u5347\u4e3a double\uff0c\u518d\u8f6c\u4e3a float\uff09float d = 6 \/ 4.0;float d = (float)6 \/ 4; \uff08\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff09<\/span><\/span>\n<\/a>int<\/span> e =<\/span> 10<\/span>%<\/span>3<\/span>;<\/span> \/\/% \u662f\u53d6\u6a21\uff08\u6c42\u4f59\uff09\u8fd0\u7b97\u7b26\uff0c\u8981\u6c42\u4e24\u4e2a\u64cd\u4f5c\u6570\u5fc5\u987b\u4e3a\u6574\u6570\uff08int\u3001char\u3001short\u3001long \u7b49\uff09\u3002\u8ba1\u7b97 10 \u00f7 3\uff0c\u5546\u4e3a 3\uff0c\u4f59\u6570\u4e3a 1\uff0c\u6240\u4ee5 e = 1\u3002<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \n
                \u5173\u4e8e\u53d6\u6a21\u8fd0\u7b97\u7b26 % \u7684\u8865\u5145\u6ce8\u610f\u4e8b\u9879 \u64cd\u4f5c\u6570\u5fc5\u987b\u4e3a\u6574\u578b\uff0c\u4e0d\u80fd\u7528\u4e8e\u6d6e\u70b9\u6570\uff08\u5982\n10.0 % 3 \u662f\u7f16\u8bd1\u9519\u8bef\uff09\u3002<\/p>\n
                \u7ed3\u679c\u7684\u7b26\u53f7\uff1a\u5728 C \u6807\u51c6\uff08C99\n\u4e4b\u540e\uff09\u4e2d\uff0c\u4f59\u6570\u7684\u7b26\u53f7\u4e0e\u88ab\u9664\u6570\uff08\u5de6\u64cd\u4f5c\u6570\uff09\u76f8\u540c\u3002\u4f8b\u5982\uff1a<\/p>\n
                -10 % 3 \u7684\u7ed3\u679c\u662f -1<\/p>\n
                10 % -3 \u7684\u7ed3\u679c\u662f 1<\/p>\n
                -10 % -3 \u7684\u7ed3\u679c\u662f -1<\/p>\n<\/div>\n\n\n\n
                \u590d\u5408\u8fd0\u7b97\u7b26<\/h3>\n\n\n\n
                \u8d4b\u503c<\/h4>\n\n\n\n
                \u201c = \u201d \u4f7f\u7528\u4f8b\uff1a<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 0<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u590d\u5408\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n
                \u201c *= \u201d \u201c \/= \u201d \u201c += \u201d \u201c -= \u201d \u201c %= \u201d \u201c >>= \u201d \u201c <<= \u201d \u201c\n&= \u201d \u201c |= \u201d \u201c ^= \u201d<\/p>\n\n\n\n
                \u4f7f\u7528\u4f8b\uff1a<\/p>\n\n\n\n
                <\/a>int<\/span> b +=<\/span> 10<\/span>;<\/span>\/\/b=b+10<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u5355\u76ee\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n
                \u201c ++ \u201d \u201c \u2013 \u201d<\/p>\n\n\n\n
                \u81ea\u589e++<\/p>\n\n\n\n
                \u67092\u79cd\u7528\u6cd5a++\u548c++a<\/p>\n\n\n\n
                \u4f7f\u7528\u4f8b<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a>a++;<\/span>\/\/a=11<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> b =<\/span> 20<\/span>;<\/span><\/span>\n<\/a>++<\/span>b;<\/span>\/\/b=21<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u533a\u522b\u5982\u4e0b<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> ++<\/span>a;<\/span>\/\/a=11,b=11<\/span><\/span>\n<\/a>\/\/a\u5148\u81ea\u589e1\uff0c\u540e\u5c06a\u7684\u503c\u7ed9b<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> a++;<\/span>\/\/a=10,b=11<\/span><\/span>\n<\/a>\/\/\u5148\u7ed9b\u8d4b\u503ca\u7684\u503c\uff0c\u540ea\u7684\u503c\u81ea\u589e1<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \n
                a++\u662f\u5148\u589e\u52a0\u540e\u4f7f\u7528\uff0c++a\u5148\u4f7f\u7528\u540e\u589e\u52a0<\/p>\n<\/div>\n\n\n\n
                \u2013\u540c\u7406<\/p>\n\n\n\n
                \u79fb\u4f4d\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n
                \u201c >> \u201d \u201c << \u201d<\/p>\n\n\n\n
                \u201d << \u201d \u5de6\u79fb<\/p>\n\n\n\n
                \"\"<\/figure>\n\n\n\n
                \u4f7f\u7528\u4f8b<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 10<\/span> ;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> <<<\/span>a;<\/span>\/\/a=10,b=20<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u539f\u7406\uff1a10*2=20<\/p>\n\n\n\n
                \u201d >> \u201d \u53f3\u79fb<\/p>\n\n\n\n
                \"\"
                \u53f3\u79fb<\/figcaption><\/figure>\n\n\n\n
                \u4f7f\u7528\u4f8b<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 10<\/span> ;<\/span><\/span>\n<\/a>int<\/span> b =<\/span> >><\/span>a;<\/span>\/\/a=10,b=5<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u539f\u7406\uff1a10\/2=5<\/p>\n\n\n\n
                \n
                -1\u65e0\u8bba\u53f3\u79fb\u591a\u5c11\u4f4d\uff0c\u4ed6\u4f9d\u65e7\u662f-1<\/p>\n<\/div>\n\n\n\n
                \u4f4d\u64cd\u4f5c\u7b26<\/h4>\n\n\n\n
                & \u6309\u4f4d\u4e0e<\/p>\n\n\n\n
                \"\"
                \u6309\u4f4d\u4e0e<\/figcaption><\/figure>\n\n\n\n
                \u6309\u4f4d\u6216<\/div>\n\n\n\n
                \"\"
                \u6309\u4f4d\u6216<\/figcaption><\/figure>\n\n\n\n
                ^ \u6309\u4f4d\u5f02\u6216<\/p>\n\n\n\n
                \"\"
                \u6309\u4f4d\u5f02\u6216<\/figcaption><\/figure>\n\n\n\n
                ~ \u6309\u4f4d\u53d6\u53cd<\/p>\n\n\n\n
                \u539f\u6765\u662f0\u5c31\u53d81 \u662f1\u5c31\u53d80<\/p>\n\n\n\n
                \u5173\u7cfb\u8fd0\u7b97\u7b26<\/h4>\n\n\n\n
                \u201d > >= < <= == != \u201d<\/p>\n\n\n\n
                ==\uff08\u76f8\u7b49\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff09\uff1a\u5224\u65ad\u5de6\u53f3\u4e24\u4fa7\u7684\u503c\u662f\u5426\u76f8\u7b49\uff0c\u8fd4\u56de\u5e03\u5c14\u503c\uff08True\/False\n\u6216 1\/0\uff09\u3002<\/p>\n\n\n\n
                \u793a\u4f8b\uff1aif (a == 10)\uff08\u5224\u65ad a \u662f\u5426\u7b49\u4e8e 10\uff09\u3002 a = 10 \u628a\u6570\u5b57 10 \u8d4b\u7ed9\u53d8\u91cf\na<\/p>\n\n\n\n
                \n
                \u5982\u679c\u5728 if \u6761\u4ef6\u4e2d\u8bef\u5199\u6210 if (a = 5)\uff0c\u7a0b\u5e8f\u4e0d\u4f1a\u62a5\u9519\uff0c\u800c\u662f\u4f1a\u628a 5 \u8d4b\u7ed9\na\uff0c\u7136\u540e\u5224\u65ad a \u662f\u5426\u4e3a\u201c\u771f\u201d\uff08\u975e\u96f6\/\u975e\u7a7a\uff09\uff0c\u5bfc\u81f4\u903b\u8f91\u9519\u8bef\u3002\u8fd9\u5728 C\/Java\n\u4e2d\u7f16\u8bd1\u80fd\u901a\u8fc7\uff0c\u4f46\u5728 Python \u4e2d\u4f1a\u76f4\u63a5\u62a5\u8bed\u6cd5\u9519\u8bef\uff08\u5f3a\u5236\u907f\u514d\u6b64\u98ce\u9669\uff09\u3002<\/p>\n<\/div>\n\n\n\n
                \u9017\u53f7\u8868\u8fbe\u5f0f<\/h3>\n\n\n\n
                \u7528\u9017\u53f7\u9694\u5f00\u7684\u8868\u8fbe\u5f0f<\/p>\n\n\n\n
                \u4f7f\u7528\u4f8b<\/p>\n\n\n\n
                <\/a>int<\/span> a =<\/span> 3<\/span>,<\/span> b=<\/span>4<\/span>;<\/span><\/span>\n<\/a>int<\/span> c =(<\/span>a=<\/span>b+<\/span>3<\/span>,<\/span>a,<\/span>b=<\/span>a+<\/span>4<\/span>,<\/span>a+<\/span>b)<\/span>\/\/c=18<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \n
                \u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u6267\u884c \u6574\u4e2a\u8868\u8fbe\u5f0f\u662f\u6700\u540e\u4e00\u4e2a\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c<\/p>\n<\/div>\n\n\n\n
                \u903b\u8f91\u8fd0\u7b97\u7b26<\/h3>\n\n\n\n
                ! \u53d6\u53cd(\u975e)<\/p>\n\n\n\n
                \"\"
                \u53cd<\/figcaption><\/figure>\n\n\n\n
                && \u4e0e(and)<\/p>\n\n\n\n
                \"\"
                \u4e0e<\/figcaption><\/figure>\n\n\n\n
                || \u6216(or)<\/p>\n\n\n\n
                \"\"
                \u6216<\/figcaption><\/figure>\n\n\n\n
                \u77ed\u8def\u4e0e<\/h3>\n\n\n\n
                \u5982\u679c\u5de6\u9762\u7684\u8868\u8fbe\u5f0f\u4e0d\u6ee1\u8db3\u903b\u8f91\u8fd0\u7b97\u7b26\u6761\u4ef6\uff0c\u5c31\u4e0d\u518d\u5bf9\u53f3\u8fb9\u8868\u8fbe\u5f0f\u6c42\u503c<\/p>\n\n\n\n
                \u4f7f\u7528\u4f8b<\/p>\n\n\n\n
                <\/a>if<\/span>(<\/span>month>=<\/span>3<\/span> &&<\/span> month<=<\/span>5<\/span>)<\/span><\/span>\n<\/a>\/\/\u5982\u679cmonth>=3\u4e0d\u6210\u7acb\u5219\u4e0d\u4f1a\u6267\u884c month<=5<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
                \u77ed\u8def\u6216<\/h3>\n\n\n\n
                \u5982\u679c\u5de6\u8fb9\u7684\u8868\u8fbe\u5f0f\u6ee1\u8db3\u903b\u8f91\u8fd0\u7b97\u7b26\u6761\u4ef6\uff0c\u5c31\u4e0d\u518d\u5bf9\u53f3\u8fb9\u8868\u8fbe\u5f0f\u6c42\u503c<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u63a5\u4e0a\u96c6\u6211\u4eec\u7ee7\u7eed \u5e38\u91cf \u5e38\u91cf:\u7a0b\u5e8f\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u80fd\u4fee\u6539\u7684\uff0c\u5e38\u89c1\u7684\u6709\u5b57\u9762\u503c\u5e38\u91cf \u5728C\u8bed\u8a00\u4e2d\uff0c\u5e38\u91cf\u662f\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u503c\u4e0d\u80fd\u88ab\u6539\u53d8\u7684\u91cf\u3002\u6b63 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=47"}],"version-history":[{"count":4,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":60,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions\/60"}],"wp:attachment":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}