{"id":87,"date":"2026-09-16T20:59:00","date_gmt":"2026-09-16T12:59:00","guid":{"rendered":"https:\/\/decagrammaton.xyz\/?p=87"},"modified":"2026-09-17T16:11:55","modified_gmt":"2026-09-17T08:11:55","slug":"08-c%e8%af%ad%e8%a8%80%e6%8c%87%e9%92%88%e7%bb%ad2","status":"publish","type":"post","link":"https:\/\/decagrammaton.xyz\/?p=87","title":{"rendered":"08-C\u8bed\u8a00\u6307\u9488(\u7eed2)"},"content":{"rendered":"\n

\u63a5\u4e0a\u96c6\uff0c\u6211\u4eec\u6765\u5b66\u4e60\u6307\u9488\u548c\u51fd\u6570\u7684\u5173\u7cfb<\/p>\n\n\n\n

\n\n\n\n

\u6307\u9488\u4e0e\u51fd\u6570<\/h2>\n\n\n\n

\u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86\u6307\u9488\u53ef\u4ee5\u901a\u8fc7\u5730\u5740\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u636e\u3002<\/p>\n\n\n\n

\u4f8b\u5982\uff1a<\/p>\n\n\n\n

<\/a>int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a>int<\/span> *<\/span>p =<\/span> &<\/span>a;<\/span><\/span>\n<\/a><\/span>\n<\/a>*<\/span>p =<\/span> 20<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u6b64\u65f6\uff1a<\/p>\n\n\n\n
a \u2192 20\n*p \u2192 20<\/code><\/pre>\n\n\n\n
\u90a3\u4e48\u95ee\u9898\u6765\u4e86\uff1a<\/p>\n\n\n\n
\u5982\u679c\u628a\u53d8\u91cf\u4f20\u7ed9\u51fd\u6570\uff0c\u51fd\u6570\u80fd\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u8fd9\u4e2a\u53d8\u91cf\uff1f<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u666e\u901a\u51fd\u6570\u53c2\u6570<\/h3>\n\n\n\n
\u5148\u770b\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> change(<\/span>int<\/span> x)<\/span> {<\/span><\/span>\n<\/a>    x =<\/span> 20<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a><\/span>\n<\/a>    change(<\/span>a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
10<\/code><\/pre>\n\n\n\n
\u867d\u7136\u8c03\u7528\u4e86\uff1a<\/p>\n\n\n\n
<\/a>change(<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f46\u662f a<\/code> \u5e76\u6ca1\u6709\u53d8\u6210 20<\/code>\u3002<\/p>\n\n\n\n
\u4e3a\u4ec0\u4e48\uff1f<\/p>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> change(<\/span>int<\/span> x)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u7684 x<\/code> \u662f\u51fd\u6570\u81ea\u5df1\u7684\u4e00\u4e2a\u53d8\u91cf\u3002<\/p>\n\n\n\n
\u8c03\u7528\uff1a<\/p>\n\n\n\n
<\/a>change(<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5b9e\u9645\u4e0a\u662f\u628a a<\/code> \u4e2d\u7684\u6570\u636e\u590d\u5236\u7ed9\u4e86 x<\/code>\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u7406\u89e3\u6210\uff1a<\/p>\n\n\n\n
main\uff1a\n\na\n\u2193\n10\n\n\n\u8c03\u7528 change(a)\n\n\u2193\n\n\n\u51fd\u6570\uff1a\n\nx\n\u2193\n10<\/code><\/pre>\n\n\n\n
\u6b64\u65f6\u5b9e\u9645\u4e0a\u5b58\u5728\u4e24\u4e2a\u53d8\u91cf\uff1a<\/p>\n\n\n\n
a \u2192 10\n\nx \u2192 10<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
<\/a>x =<\/span> 20<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4fee\u6539\u7684\u662f x<\/code>\uff0c\u800c\u4e0d\u662f a<\/code>\u3002<\/p>\n\n\n\n
\u51fd\u6570\u7ed3\u675f\u540e\uff0cx<\/code> \u88ab\u9500\u6bc1\uff1a<\/p>\n\n\n\n
a \u2192 10<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u6700\u540e\u8fd8\u662f\uff1a<\/p>\n\n\n\n
10<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u901a\u8fc7\u6307\u9488\u8ba9\u51fd\u6570\u4fee\u6539\u53d8\u91cf<\/h2>\n\n\n\n
\u5982\u679c\u5e0c\u671b\u51fd\u6570\u4fee\u6539 a<\/code>\uff0c\u5c31\u53ef\u4ee5\u628a a<\/code>\n\u7684\u5730\u5740\u4f20\u7ed9\u51fd\u6570\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> change(<\/span>int<\/span> *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    *<\/span>p =<\/span> 20<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a><\/span>\n<\/a>    change(&<\/span>a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
20<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u53d1\u751f\u4e86\u4ec0\u4e48\uff1f<\/p>\n\n\n\n
\u9996\u5148\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> a =<\/span> 10<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7136\u540e\uff1a<\/p>\n\n\n\n
<\/a>change(&<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u628a a<\/code> \u7684\u5730\u5740\u4f20\u7ed9\u4e86\u51fd\u6570\u3002<\/p>\n\n\n\n
\u51fd\u6570\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> change(<\/span>int<\/span> *<\/span>p)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f7f\u7528\u4e00\u4e2a int *<\/code> \u7c7b\u578b\u7684\u6307\u9488\u63a5\u6536\u8fd9\u4e2a\u5730\u5740\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n
main\uff1a\n\na\n\u2193\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502  10  \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n   \u2191\n   \u2502\n  &a\n   \u2502\n   \u2193\n\u51fd\u6570\uff1a\n\np\n\u2193\n\u4fdd\u5b58 a \u7684\u5730\u5740<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\uff1a<\/p>\n\n\n\n
<\/a>*<\/span>p<\/span><\/code><\/pre><\/div>\n\n\n\n
\u5c31\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u5730\u5740\u8bbf\u95ee a<\/code>\u3002<\/p>\n\n\n\n
\u6267\u884c\uff1a<\/p>\n\n\n\n
<\/a>*<\/span>p =<\/span> 20<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5b9e\u9645\u4e0a\u4fee\u6539\u7684\u662f a<\/code>\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
a \u2192 20\n*p \u2192 20<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u51fd\u6570\u4e2d\u7684\u6307\u9488\u53c2\u6570<\/h2>\n\n\n\n
\u6765\u770b\u5b8c\u6574\u7684\u5173\u7cfb\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> change(<\/span>int<\/span> *<\/span>p)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8fd9\u91cc\u7684\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> *<\/span>p<\/span><\/code><\/pre><\/div>\n\n\n\n
\u8868\u793a\uff1a<\/p>\n\n\n\n
\n
p<\/code> \u662f\u4e00\u4e2a int<\/code> \u7c7b\u578b\u7684\u6307\u9488\u53d8\u91cf\u3002<\/p>\n<\/blockquote>\n\n\n\n
\u8c03\u7528\uff1a<\/p>\n\n\n\n
<\/a>change(&<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5c31\u662f\u628a\uff1a<\/p>\n\n\n\n
<\/a>&<\/span>a<\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f20\u7ed9\u51fd\u6570\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
&a\n \u2193\na\u7684\u5730\u5740\n \u2193\np\u4fdd\u5b58\u8fd9\u4e2a\u5730\u5740\n \u2193\n*p\n \u2193\n\u8bbf\u95eea<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\uff1a<\/p>\n\n\n\n
<\/a>*<\/span>p =<\/span> 20<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5c31\u53ef\u4ee5\u4fee\u6539 a<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e00\u4e2a\u66f4\u76f4\u89c2\u7684\u4f8b\u5b50<\/h2>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> add(<\/span>int<\/span> *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    *<\/span>p =<\/span> *<\/span>p +<\/span> 10<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a><\/span>\n<\/a>    add(&<\/span>a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
20<\/code><\/pre>\n\n\n\n
\u6267\u884c\uff1a<\/p>\n\n\n\n
<\/a>add(&<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4e4b\u540e\uff1a<\/p>\n\n\n\n
a \u2192 10\n\n&a\n \u2193\np<\/code><\/pre>\n\n\n\n
\u51fd\u6570\u6267\u884c\uff1a<\/p>\n\n\n\n
<\/a>*<\/span>p =<\/span> *<\/span>p +<\/span> 10<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5b9e\u9645\u4e0a\u5c31\u662f\uff1a<\/p>\n\n\n\n
*p \u2192 10\n\n10 + 10\n\n*p \u2192 20\n\na \u2192 20<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e3a\u4ec0\u4e48\u8981\u4f20\u5730\u5740\uff1f<\/h2>\n\n\n\n
\u5982\u679c\u53ea\u662f\uff1a<\/p>\n\n\n\n
<\/a>change(<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f20\u8fdb\u53bb\u7684\u662f\uff1a<\/p>\n\n\n\n
a\u4e2d\u7684\u6570\u636e<\/code><\/pre>\n\n\n\n
\u51fd\u6570\u5f97\u5230\u7684\u662f\u6570\u636e\u7684\u526f\u672c\uff1a<\/p>\n\n\n\n
a \u2192 10\n\nx \u2192 10<\/code><\/pre>\n\n\n\n
\u4fee\u6539 x<\/code> \u4e0d\u4f1a\u5f71\u54cd a<\/code>\u3002<\/p>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
<\/a>change(&<\/span>a);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4f20\u8fdb\u53bb\u7684\u662f\uff1a<\/p>\n\n\n\n
a\u7684\u5730\u5740<\/code><\/pre>\n\n\n\n
\u51fd\u6570\u5f97\u5230\u7684\u662f\u8fd9\u4e2a\u5730\u5740\uff1a<\/p>\n\n\n\n
a\n\u2193\n10\n\u2191\n\u2502\np<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u51fd\u6570\u53ef\u4ee5\u901a\u8fc7\uff1a<\/p>\n\n\n\n
<\/a>*<\/span>p<\/span><\/code><\/pre><\/div>\n\n\n\n
\u627e\u5230\u5e76\u4fee\u6539\u539f\u6765\u7684\u6570\u636e\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u7b80\u5355\u8bb0\u6210\uff1a<\/p>\n\n\n\n
\u4f20\u503c\uff1a\n\na \u2192 10\n     \u2193\n     x \u2192 10\n\n\u4fee\u6539x\n\u2193\na\u4e0d\u53d8\n\n\n\u4f20\u5730\u5740\uff1a\n\na \u2192 10\n\u2191\n\u2502\np\n\n*p \u2192 10\n\n\u4fee\u6539*p\n\u2193\na\u4e5f\u6539\u53d8<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u51fd\u6570\u4fee\u6539\u6570\u7ec4<\/h2>\n\n\n\n
\u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86\u6307\u9488\u53ef\u4ee5\u904d\u5386\u6570\u7ec4\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u4e5f\u53ef\u4ee5\u628a\u6570\u7ec4\u7684\u5730\u5740\u4f20\u7ed9\u51fd\u6570\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> print_array(<\/span>int<\/span> *<\/span>p,<\/span> int<\/span> size)<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> size;<\/span> i++)<\/span> {<\/span><\/span>\n<\/a>        printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> *(<\/span>p +<\/span> i));<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>,<\/span> 40<\/span>,<\/span> 50<\/span>};<\/span><\/span>\n<\/a><\/span>\n<\/a>    print_array(<\/span>a,<\/span> 5<\/span>);<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
10\n20\n30\n40\n50<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\uff1a<\/p>\n\n\n\n
<\/a>print_array(<\/span>a,<\/span> 5<\/span>);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u6570\u7ec4\u540d a<\/code> \u5728\u8fd9\u91cc\u4f1a\u8f6c\u6362\u6210\u6307\u5411\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u6307\u9488\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u51fd\u6570\u63a5\u6536\u5230\u7684\uff1a<\/p>\n\n\n\n
<\/a>int<\/span> *<\/span>p<\/span><\/code><\/pre><\/div>\n\n\n\n
\u6307\u5411\uff1a<\/p>\n\n\n\n
<\/a>a[<\/span>0<\/span>]<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u7136\u540e\uff1a<\/p>\n\n\n\n
<\/a>*(<\/span>p +<\/span> i)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5c31\u53ef\u4ee5\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n
\u5173\u7cfb\u662f\uff1a<\/p>\n\n\n\n
a\n\u2193\na[0] \u7684\u5730\u5740\n\u2193\np\n\np + 0 \u2192 a[0]\np + 1 \u2192 a[1]\np + 2 \u2192 a[2]\np + 3 \u2192 a[3]\np + 4 \u2192 a[4]<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u51fd\u6570\u901a\u8fc7\u6307\u9488\u4fee\u6539\u6570\u7ec4<\/h2>\n\n\n\n
\u4e0d\u4ec5\u53ef\u4ee5\u8bfb\u53d6\u6570\u7ec4\uff0c\u8fd8\u53ef\u4ee5\u4fee\u6539\u6570\u7ec4\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>#include <\/span><stdio.h><\/span><\/span>\n<\/a><\/span>\n<\/a>void<\/span> change_array(<\/span>int<\/span> *<\/span>p,<\/span> int<\/span> size)<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> size;<\/span> i++)<\/span> {<\/span><\/span>\n<\/a>        *(<\/span>p +<\/span> i)<\/span> =<\/span> *(<\/span>p +<\/span> i)<\/span> *<\/span> 2<\/span>;<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>};<\/span><\/span>\n<\/a><\/span>\n<\/a>    change_array(<\/span>a,<\/span> 5<\/span>);<\/span><\/span>\n<\/a><\/span>\n<\/a>    for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 5<\/span>;<\/span> i++)<\/span> {<\/span><\/span>\n<\/a>        printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> a[<\/span>i]);<\/span><\/span>\n<\/a>    }<\/span><\/span>\n<\/a><\/span>\n<\/a>    return<\/span> 0<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8f93\u51fa\uff1a<\/p>\n\n\n\n
2\n4\n6\n8\n10<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\u51fd\u6570\u4e2d\u7684\uff1a<\/p>\n\n\n\n
<\/a>*(<\/span>p +<\/span> i)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8bbf\u95ee\u7684\u5c31\u662f a[i]<\/code>\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
<\/a>*(<\/span>p +<\/span> i)<\/span> =<\/span> *(<\/span>p +<\/span> i)<\/span> *<\/span> 2<\/span>;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u5b9e\u9645\u4e0a\u5c31\u662f\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n\n\n\n
\n\n\n\n
\u6307\u9488\u4e0e\u51fd\u6570\u7684\u6838\u5fc3<\/h2>\n\n\n\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u524d\u9762\u5b66\u4e60\u7684\u5185\u5bb9\u5168\u90e8\u8fde\u63a5\u8d77\u6765\uff1a<\/p>\n\n\n\n
\u53d8\u91cf\n \u2193\n\u53d8\u91cf\u6709\u5730\u5740\n \u2193\n&a \u83b7\u53d6\u5730\u5740\n \u2193\n\u6307\u9488\u4fdd\u5b58\u5730\u5740\n \u2193\n*p \u901a\u8fc7\u5730\u5740\u8bbf\u95ee\u6570\u636e\n \u2193\n\u628a\u5730\u5740\u4f20\u7ed9\u51fd\u6570\n \u2193\n\u51fd\u6570\u901a\u8fc7\u6307\u9488\u8bbf\u95ee\u548c\u4fee\u6539\u539f\u6765\u7684\u6570\u636e<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
<\/a>void<\/span> change(<\/span>int<\/span> *<\/span>p)<\/span> {<\/span><\/span>\n<\/a>    *<\/span>p =<\/span> 20<\/span>;<\/span><\/span>\n<\/a>}<\/span><\/span>\n<\/a><\/span>\n<\/a>int<\/span> main()<\/span> {<\/span><\/span>\n<\/a><\/span>\n<\/a>    int<\/span> a =<\/span> 10<\/span>;<\/span><\/span>\n<\/a><\/span>\n<\/a>    change(&<\/span>a);<\/span><\/span>\n<\/a><\/span>\n<\/a>    printf(<\/span>\"<\/span>%d\\n<\/span>\"<\/span>,<\/span> a);<\/span><\/span>\n<\/a><\/span>\n<\/a>}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u6838\u5fc3\u5173\u7cfb\uff1a<\/p>\n\n\n\n
a\n\u2193\n&a\n\u2193\n\u4f20\u7ed9\u51fd\u6570\n\u2193\np\n\u2193\n*p\n\u2193\n\u4fee\u6539a<\/code><\/pre>\n\n\n\n
\u8bb0\u4f4f\uff1a<\/strong><\/p>\n\n\n\n
\u666e\u901a\u53c2\u6570\uff1a\n\nchange(a)\n\n\u4f20\u9012a\u4e2d\u7684\u6570\u636e\n\n\n\u6307\u9488\u53c2\u6570\uff1a\n\nchange(&a)\n\n\u4f20\u9012a\u7684\u5730\u5740<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\uff0c\u5f53\u51fd\u6570\u9700\u8981\u4fee\u6539\u8c03\u7528\u8005\u4e2d\u7684\u53d8\u91cf<\/strong>\u65f6\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u6307\u9488\u53c2\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a5\u4e0a\u96c6\uff0c\u6211\u4eec\u6765\u5b66\u4e60\u6307\u9488\u548c\u51fd\u6570\u7684\u5173\u7cfb \u6307\u9488\u4e0e\u51fd\u6570 \u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86\u6307\u9488\u53ef\u4ee5\u901a\u8fc7\u5730\u5740\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u636e\u3002 \u4f8b\u5982\uff1a int a = 10; i …<\/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-87","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/87","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=87"}],"version-history":[{"count":1,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/87\/revisions"}],"predecessor-version":[{"id":88,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=\/wp\/v2\/posts\/87\/revisions\/88"}],"wp:attachment":[{"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=87"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=87"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/decagrammaton.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=87"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}