{"id":3381,"date":"2025-03-30T21:49:08","date_gmt":"2025-03-30T13:49:08","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3381"},"modified":"2025-03-30T21:49:08","modified_gmt":"2025-03-30T13:49:08","slug":"c-%e8%af%ad%e8%a8%80%e4%b8%ad%e7%9a%84%e8%bf%90%e7%ae%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/30\/c-%e8%af%ad%e8%a8%80%e4%b8%ad%e7%9a%84%e8%bf%90%e7%ae%97%e7%ac%a6\/","title":{"rendered":"C \u8bed\u8a00\u4e2d\u7684\u8fd0\u7b97\u7b26"},"content":{"rendered":"\n

C \u8bed\u8a00\u4e2d\u7684\u8fd0\u7b97\u7b26\u662f\u7528\u6765\u6267\u884c\u5404\u79cd\u64cd\u4f5c\u7684\u7b26\u53f7\uff0c\u4e3b\u8981\u5305\u62ec\u7b97\u672f\u8fd0\u7b97\u3001\u5173\u7cfb\u8fd0\u7b97\u3001\u903b\u8f91\u8fd0\u7b97\u7b49\u3002C \u8bed\u8a00\u6709\u591a\u79cd\u7c7b\u578b\u7684\u8fd0\u7b97\u7b26\uff0c\u4ee5\u4e0b\u662f\u5e38\u89c1\u7684\u5206\u7c7b\uff1a<\/p>\n\n\n\n

    \n
  1. \u7b97\u672f\u8fd0\u7b97\u7b26<\/strong>\uff08Arithmetic Operators\uff09<\/li>\n\n\n\n
  2. \u5173\u7cfb\u8fd0\u7b97\u7b26<\/strong>\uff08Relational Operators\uff09<\/li>\n\n\n\n
  3. \u903b\u8f91\u8fd0\u7b97\u7b26<\/strong>\uff08Logical Operators\uff09<\/li>\n\n\n\n
  4. \u4f4d\u8fd0\u7b97\u7b26<\/strong>\uff08Bitwise Operators\uff09<\/li>\n\n\n\n
  5. \u8d4b\u503c\u8fd0\u7b97\u7b26<\/strong>\uff08Assignment Operators\uff09<\/li>\n\n\n\n
  6. \u81ea\u589e\/\u81ea\u51cf\u8fd0\u7b97\u7b26<\/strong>\uff08Increment\/Decrement Operators\uff09<\/li>\n\n\n\n
  7. \u6761\u4ef6\u8fd0\u7b97\u7b26<\/strong>\uff08Conditional (Ternary) Operator\uff09<\/li>\n\n\n\n
  8. \u9017\u53f7\u8fd0\u7b97\u7b26<\/strong>\uff08Comma Operator\uff09<\/li>\n\n\n\n
  9. \u6307\u9488\u8fd0\u7b97\u7b26<\/strong>\uff08Pointer Operators\uff09<\/li>\n\n\n\n
  10. \u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26<\/strong>\uff08Type Casting Operator\uff09<\/li>\n<\/ol>\n\n\n\n

    \u4ee5\u4e0b\u662f\u5404\u7c7b\u8fd0\u7b97\u7b26\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n

    \n\n\n\n

    1. \u7b97\u672f\u8fd0\u7b97\u7b26<\/strong>\uff08Arithmetic Operators\uff09<\/h3>\n\n\n\n

    \u7528\u4e8e\u8fdb\u884c\u5e38\u89c1\u7684\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n\n\n\n

    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    +<\/code><\/td>\u52a0\u6cd5<\/td>a + b<\/code><\/td><\/tr>
    -<\/code><\/td>\u51cf\u6cd5<\/td>a - b<\/code><\/td><\/tr>
    *<\/code><\/td>\u4e58\u6cd5<\/td>a * b<\/code><\/td><\/tr>
    \/<\/code><\/td>\u9664\u6cd5<\/td>a \/ b<\/code><\/td><\/tr>
    %<\/code><\/td>\u53d6\u4f59\uff08\u6a21\u8fd0\u7b97\uff09<\/td>a % b<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 10, b = 5;\n    printf(\"a + b = %d\\n\", a + b);  \/\/ 15\n    printf(\"a - b = %d\\n\", a - b);  \/\/ 5\n    printf(\"a * b = %d\\n\", a * b);  \/\/ 50\n    printf(\"a \/ b = %d\\n\", a \/ b);  \/\/ 2\n    printf(\"a %% b = %d\\n\", a % b); \/\/ 0\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    2. \u5173\u7cfb\u8fd0\u7b97\u7b26<\/strong>\uff08Relational Operators\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u7684\u5173\u7cfb\uff0c\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff08true<\/code> \u6216 false<\/code>\uff09\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    ==<\/code><\/td>\u7b49\u4e8e<\/td>a == b<\/code><\/td><\/tr>
    !=<\/code><\/td>\u4e0d\u7b49\u4e8e<\/td>a != b<\/code><\/td><\/tr>
    ><\/code><\/td>\u5927\u4e8e<\/td>a > b<\/code><\/td><\/tr>
    <<\/code><\/td>\u5c0f\u4e8e<\/td>a < b<\/code><\/td><\/tr>
    >=<\/code><\/td>\u5927\u4e8e\u7b49\u4e8e<\/td>a >= b<\/code><\/td><\/tr>
    <=<\/code><\/td>\u5c0f\u4e8e\u7b49\u4e8e<\/td>a <= b<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 10, b = 5;\n    printf(\"a == b: %d\\n\", a == b);  \/\/ 0 (false)\n    printf(\"a != b: %d\\n\", a != b);  \/\/ 1 (true)\n    printf(\"a > b: %d\\n\", a > b);    \/\/ 1 (true)\n    printf(\"a < b: %d\\n\", a < b);    \/\/ 0 (false)\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    3. \u903b\u8f91\u8fd0\u7b97\u7b26<\/strong>\uff08Logical Operators\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u8fdb\u884c\u5e03\u5c14\u503c\u903b\u8f91\u64cd\u4f5c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    &&<\/code><\/td>\u903b\u8f91\u4e0e\uff08AND\uff09<\/td>a && b<\/code><\/td><\/tr>
    ||<\/code><\/td>\u903b\u8f91\u6216\uff08OR\uff09<\/td>a || b<\/code><\/td><\/tr>
    !<\/code><\/td>\u903b\u8f91\u975e\uff08NOT\uff09<\/td>!a<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 1, b = 0;\n    printf(\"a && b: %d\\n\", a && b);  \/\/ 0 (false)\n    printf(\"a || b: %d\\n\", a || b);  \/\/ 1 (true)\n    printf(\"!a: %d\\n\", !a);          \/\/ 0 (false)\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    4. \u4f4d\u8fd0\u7b97\u7b26<\/strong>\uff08Bitwise Operators\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u5728\u4e8c\u8fdb\u5236\u4f4d\u7ea7\u522b\u4e0a\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    &<\/code><\/td>\u4f4d\u4e0e\uff08AND\uff09<\/td>a & b<\/code><\/td><\/tr>
    |<\/code><\/td>\u4f4d\u6216\uff08OR\uff09<\/td>a | b<\/code><\/td><\/tr>
    ^<\/code><\/td>\u4f4d\u5f02\u6216\uff08XOR\uff09<\/td>a ^ b<\/code><\/td><\/tr>
    ~<\/code><\/td>\u4f4d\u975e\uff08NOT\uff09<\/td>~a<\/code><\/td><\/tr>
    <<<\/code><\/td>\u5de6\u79fb<\/td>a << 2<\/code><\/td><\/tr>
    >><\/code><\/td>\u53f3\u79fb<\/td>a >> 2<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 5, b = 3;\n    printf(\"a & b: %d\\n\", a & b);  \/\/ 1\n    printf(\"a | b: %d\\n\", a | b);  \/\/ 7\n    printf(\"a ^ b: %d\\n\", a ^ b);  \/\/ 6\n    printf(\"~a: %d\\n\", ~a);        \/\/ -6 (\u6309\u4f4d\u53d6\u53cd)\n    printf(\"a << 2: %d\\n\", a << 2); \/\/ 20\n    printf(\"a >> 2: %d\\n\", a >> 2); \/\/ 1\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    5. \u8d4b\u503c\u8fd0\u7b97\u7b26<\/strong>\uff08Assignment Operators\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u7ed9\u53d8\u91cf\u8d4b\u503c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    =<\/code><\/td>\u8d4b\u503c<\/td>a = b<\/code><\/td><\/tr>
    +=<\/code><\/td>\u52a0\u6cd5\u8d4b\u503c<\/td>a += b<\/code><\/td><\/tr>
    -=<\/code><\/td>\u51cf\u6cd5\u8d4b\u503c<\/td>a -= b<\/code><\/td><\/tr>
    *=<\/code><\/td>\u4e58\u6cd5\u8d4b\u503c<\/td>a *= b<\/code><\/td><\/tr>
    \/=<\/code><\/td>\u9664\u6cd5\u8d4b\u503c<\/td>a \/= b<\/code><\/td><\/tr>
    %=<\/code><\/td>\u53d6\u4f59\u8d4b\u503c<\/td>a %= b<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 5, b = 3;\n    a += b;  \/\/ a = a + b\n    printf(\"a += b: %d\\n\", a);  \/\/ 8\n    a *= b;  \/\/ a = a * b\n    printf(\"a *= b: %d\\n\", a);  \/\/ 24\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    6. \u81ea\u589e\/\u81ea\u51cf\u8fd0\u7b97\u7b26<\/strong>\uff08Increment\/Decrement Operators\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u5bf9\u53d8\u91cf\u8fdb\u884c\u52a01\u6216\u51cf1\u64cd\u4f5c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    ++<\/code><\/td>\u81ea\u589e\u8fd0\u7b97\u7b26<\/td>a++<\/code><\/td><\/tr>
    --<\/code><\/td>\u81ea\u51cf\u8fd0\u7b97\u7b26<\/td>a--<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 5;\n    printf(\"a++: %d\\n\", a++);  \/\/ 5 (\u5148\u8fd4\u56de\u518d\u81ea\u589e)\n    printf(\"a: %d\\n\", a);      \/\/ 6\n    printf(\"++a: %d\\n\", ++a);  \/\/ 7 (\u5148\u81ea\u589e\u518d\u8fd4\u56de)\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    7. \u6761\u4ef6\u8fd0\u7b97\u7b26<\/strong>\uff08Conditional (Ternary) Operator\uff09<\/h3>\n\n\n\n
    \u6761\u4ef6\u8fd0\u7b97\u7b26\u662fC\u8bed\u8a00\u4e2d\u7684\u4e00\u4e2a\u4e09\u5143\u8fd0\u7b97\u7b26\uff0c\u5b83\u6839\u636e\u6761\u4ef6\u7684\u771f\u5047\u8fd4\u56de\u4e0d\u540c\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    ?:<\/code><\/td>\u6761\u4ef6\u8fd0\u7b97\u7b26\uff08\u4e09\u5143\u8fd0\u7b97\u7b26\uff09<\/td>condition ? expr1 : expr2<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 5, b = 3;\n    int max = (a > b) ? a : b;  \/\/ \u5982\u679ca > b\uff0c\u5219\u8fd4\u56dea\uff0c\u5426\u5219\u8fd4\u56deb\n    printf(\"max = %d\\n\", max);   \/\/ 5\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    8. \u9017\u53f7\u8fd0\u7b97\u7b26<\/strong>\uff08Comma Operator\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u5728\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4e2d\u6267\u884c\u591a\u4e2a\u64cd\u4f5c\uff0c\u591a\u4e2a\u64cd\u4f5c\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u6267\u884c\uff0c\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u64cd\u4f5c\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    ,<\/code><\/td>\u9017\u53f7\u8fd0\u7b97\u7b26<\/td>a = (b = 5, b + 2)<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a, b;\n    a = (b = 5, b + 2);  \/\/ \u5148\u7ed9b\u8d4b\u503c5\uff0c\u518d\u6267\u884cb+2\uff0c\u6700\u540e\u5c06\u7ed3\u679c\u8d4b\u7ed9a\n    printf(\"a = %d, b = %d\\n\", a, b);  \/\/ a = 7, b = 5\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    9. \u6307\u9488\u8fd0\u7b97\u7b26<\/strong>\uff08Pointer Operators\uff09<\/h3>\n\n\n\n
    \u6307\u9488\u8fd0\u7b97\u7b26\u7528\u4e8e\u8bbf\u95ee\u6307\u9488\u548c\u5730\u5740\u76f8\u5173\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    &<\/code><\/td>\u5730\u5740\u8fd0\u7b97\u7b26<\/td>&a<\/code><\/td><\/tr>
    *<\/code><\/td>\u89e3\u5f15\u7528\u8fd0\u7b97\u7b26<\/td>*p<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    int a = 10;\n    int *p = &a;  \/\/ p\u5b58\u50a8a\u7684\u5730\u5740\n    printf(\"a = %d\\n\", *p);  \/\/ \u8f93\u51fa: 10\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    10. \u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26<\/strong>\uff08Type Casting Operator\uff09<\/h3>\n\n\n\n
    \u7528\u4e8e\u5c06\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u53e6\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n
    \u8fd0\u7b97\u7b26<\/th>\u63cf\u8ff0<\/th>\u4f8b\u5b50<\/th><\/tr><\/thead>
    (type)<\/code><\/td>\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26<\/td>(int)a<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u793a\u4f8b\uff1a<\/h4>\n\n\n\n
    #include <stdio.h>\n\nint main() {\n    float a = 3.14;\n    int b = (int)a;  \/\/ \u5f3a\u5236\u8f6c\u6362\u4e3a\u6574\u6570\n    printf(\"b = %d\\n\", b);  \/\/ 3\n    return 0;\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u603b\u7ed3<\/h3>\n\n\n\n
    C \u8bed\u8a00\u63d0\u4f9b\u4e86\u591a\u79cd\u8fd0\u7b97\u7b26\u6765\u6267\u884c\u4e0d\u540c\u7c7b\u578b\u7684\u64cd\u4f5c\uff0c\u8fd0\u7b97\u7b26\u7684\u719f\u7ec3\u638c\u63e1\u5bf9\u5f00\u53d1\u9ad8\u6548\u3001\u6e05\u6670\u7684\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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