{"id":1385,"date":"2023-07-25T08:39:58","date_gmt":"2023-07-25T00:39:58","guid":{"rendered":"https:\/\/lyvba.com\/?p=1385"},"modified":"2023-07-25T08:46:05","modified_gmt":"2023-07-25T00:46:05","slug":"zerobase-learn-cpp-01","status":"publish","type":"post","link":"https:\/\/lyvba.com\/index.php\/2023\/07\/25\/zerobase-learn-cpp-01\/","title":{"rendered":"\u96f6\u57fa\u7840\u5b66C\/C++\u4e4b\u57fa\u7840\u7684\u8bed\u53e5\u7528\u6cd5\u548cC\/C++\u7b80\u5355\u8bed\u6cd5\u6bd4\u8f83"},"content":{"rendered":"

\"\"<\/p>\n

\u5f53\u60a8\u5b66\u4e60C\u8bed\u8a00\u65f6\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u7840\u7684\u8bed\u53e5\u548c\u7528\u6cd5\uff0c\u5b83\u4eec\u5c06\u5e2e\u52a9\u60a8\u5165\u95e8\uff1a<\/p>\n

1. \u8f93\u51fa\u5185\u5bb9\u5230\u63a7\u5236\u53f0\uff08\u5c4f\u5e55\uff09\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    printf("Hello, World!\\n");\n    return 0;\n}<\/code><\/pre>\n
2. \u5b9a\u4e49\u548c\u4f7f\u7528\u53d8\u91cf\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    int num = 10;\n    float pi = 3.14;\n    char letter = 'A';\n\n    printf("Integer: %d\\n", num);\n    printf("Float: %f\\n", pi);\n    printf("Character: %c\\n", letter);\n\n    return 0;\n}<\/code><\/pre>\n
3. \u8f93\u5165\u6570\u636e\u4ece\u63a7\u5236\u53f0\u83b7\u53d6\u7528\u6237\u8f93\u5165\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    int num;\n    printf("Enter a number: ");\n    scanf("%d", &num);\n    printf("You entered: %d\\n", num);\n\n    return 0;\n}<\/code><\/pre>\n
4. \u6761\u4ef6\u8bed\u53e5\uff08if-else\uff09\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    int num;\n    printf("Enter a number: ");\n    scanf("%d", &num);\n\n    if (num > 0) {\n        printf("The number is positive.\\n");\n    } else if (num < 0) {\n        printf("The number is negative.\\n");\n    } else {\n        printf("The number is zero.\\n");\n    }\n\n    return 0;\n}<\/code><\/pre>\n
5. \u5faa\u73af\u8bed\u53e5\uff08for\u548cwhile\u5faa\u73af\uff09\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    \/\/ \u4f7f\u7528for\u5faa\u73af\u8f93\u51fa0\u52304\u7684\u6570\u5b57\n    for (int i = 0; i < 5; i++) {\n        printf("%d ", i);\n    }\n    printf("\\n");\n\n    \/\/ \u4f7f\u7528while\u5faa\u73af\u8f93\u51fa5\u52301\u7684\u6570\u5b57\n    int j = 5;\n    while (j >= 1) {\n        printf("%d ", j);\n        j--;\n    }\n    printf("\\n");\n\n    return 0;\n}<\/code><\/pre>\n
6. \u6570\u7ec4\uff1a<\/h2>\n
#include <stdio.h>\n\nint main() {\n    int numbers[5] = {1, 2, 3, 4, 5};\n\n    \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u5e76\u8f93\u51fa\n    for (int i = 0; i < 5; i++) {\n        printf("%d ", numbers[i]);\n    }\n    printf("\\n");\n\n    return 0;\n}<\/code><\/pre>\n
7. \u51fd\u6570\uff1a<\/h2>\n
#include <stdio.h>\n\n\/\/ \u51fd\u6570\u58f0\u660e\nint add(int a, int b);\n\nint main() {\n    int num1 = 10;\n    int num2 = 20;\n    int result = add(num1, num2);\n    printf("Sum: %d\\n", result);\n\n    return 0;\n}\n\n\/\/ \u51fd\u6570\u5b9a\u4e49\nint add(int a, int b) {\n    return a + b;\n}<\/code><\/pre>\n
\u8fd9\u4e9b\u662fC\u8bed\u8a00\u4e2d\u7684\u57fa\u672c\u8bed\u53e5\u548c\u7528\u6cd5\uff0c\u5e0c\u671b\u5b83\u4eec\u80fd\u5e2e\u52a9\u60a8\u5165\u95e8\u5b66\u4e60\u3002\u968f\u7740\u60a8\u5bf9C\u8bed\u8a00\u7684\u8fdb\u4e00\u6b65\u5b66\u4e60\uff0c\u60a8\u5c06\u4f1a\u63a2\u7d22\u66f4\u591a\u590d\u6742\u7684\u6982\u5ff5\u548c\u529f\u80fd\u3002<\/p>\n
\n
C++ \u662f\u4e00\u79cd\u901a\u7528\u7684\u3001\u9759\u6001\u7c7b\u578b\u7684\u3001\u591a\u8303\u5f0f\u7684\u3001\u7f16\u8bd1\u7684\u7f16\u7a0b\u8bed\u8a00\u3002\u4e0b\u9762\u662f\u4e00\u4e9b C++ \u7684\u57fa\u7840\u8bed\u6cd5\u548c\u7528\u6cd5\uff1a<\/p>\n
1. \u5305\u542b\u5934\u6587\u4ef6<\/strong><\/p>\n
\u5728C++\u4e2d\uff0c\u5305\u542b\u5e93\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u9884\u5904\u7406\u5668\u6307\u4ee4 #include<\/code>\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u9700\u8981\u4f7f\u7528\u6807\u51c6\u5e93\u4e2d\u7684\u8f93\u5165\u4e0e\u8f93\u51fa\u51fd\u6570\uff0c\u4f60\u9700\u8981\u5305\u542b <iostream><\/code> \u5934\u6587\u4ef6\u3002<\/p>\n
#include <iostream><\/code><\/pre>\n
2. \u4e3b\u51fd\u6570<\/strong><\/p>\n
C++ \u7a0b\u5e8f\u4ece main()<\/code> \u51fd\u6570\u5f00\u59cb\u6267\u884c\u3002\u4e3b\u51fd\u6570\u7684\u6807\u51c6\u58f0\u660e\u5982\u4e0b\uff1a<\/p>\n
int main() {\n    \/\/ \u7a0b\u5e8f\u4ee3\u7801\n    return 0;\n}<\/code><\/pre>\n
3. \u8f93\u51fa<\/strong><\/p>\n
\u5728 C++ \u4e2d\uff0c\u4f7f\u7528 std::cout<\/code> \u8fdb\u884c\u8f93\u51fa\uff0c\u4f7f\u7528 <<<\/code> \u64cd\u4f5c\u7b26\u5411\u5c4f\u5e55\u53d1\u9001\u5185\u5bb9\u3002\u4f8b\u5982\uff1a<\/p>\n
std::cout << "Hello, world!";<\/code><\/pre>\n
4. \u8f93\u5165<\/strong><\/p>\n
\u4f7f\u7528 std::cin<\/code> \u8fdb\u884c\u8f93\u5165\uff0c\u4f7f\u7528 >><\/code> \u64cd\u4f5c\u7b26\u4ece\u952e\u76d8\u63a5\u6536\u8f93\u5165\u3002\u4f8b\u5982\uff1a<\/p>\n
int a;\nstd::cin >> a;<\/code><\/pre>\n
5. \u53d8\u91cf\u58f0\u660e<\/strong><\/p>\n
\u5728 C++ \u4e2d\uff0c\u5fc5\u987b\u5148\u58f0\u660e\u53d8\u91cf\u624d\u80fd\u4f7f\u7528\u3002\u58f0\u660e\u7684\u683c\u5f0f\u4e3a type variable_name;<\/code>\u3002\u4f8b\u5982\uff1a<\/p>\n
int a;\ndouble b;\nstd::string c;<\/code><\/pre>\n
6. \u6761\u4ef6\u8bed\u53e5<\/strong><\/p>\n
C++ \u7684\u6761\u4ef6\u8bed\u53e5\u6709 if<\/code>, else if<\/code>, else<\/code>\u3002\u4f8b\u5982\uff1a<\/p>\n
if (a > b) {\n    std::cout << "a is greater than b";\n} else if (a == b) {\n    std::cout << "a is equal to b";\n} else {\n    std::cout << "a is less than b";\n}<\/code><\/pre>\n
7. \u5faa\u73af\u8bed\u53e5<\/strong><\/p>\n
C++ \u7684\u5faa\u73af\u8bed\u53e5\u6709 for<\/code>, while<\/code>, do while<\/code>\u3002\u4f8b\u5982\uff1a<\/p>\n
for (int i = 0; i < 10; i++) {\n    std::cout << i << "\\n";\n}\n\nint i = 0;\nwhile (i < 10) {\n    std::cout << i << "\\n";\n    i++;\n}\n\ndo {\n    std::cout << i << "\\n";\n    i++;\n} while (i < 10);<\/code><\/pre>\n
\u8fd9\u53ea\u662f C++ \u7684\u57fa\u7840\u8bed\u6cd5\u548c\u7528\u6cd5\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7684\u7279\u6027\u548c\u9ad8\u7ea7\u7528\u6cd5\uff0c\u4f8b\u5982\u51fd\u6570\u3001\u7c7b\u3001\u6a21\u677f\u7b49\u3002\u5efa\u8bae\u53c2\u8003\u4e00\u4e9b C++ \u7684\u6559\u7a0b\u6216\u4e66\u7c4d\uff0c\u8fdb\u884c\u6df1\u5165\u7684\u5b66\u4e60\u3002<\/p>\n
\n
\u5f53\u60a8\u5b66\u4e60C++\u7f16\u7a0b\u8bed\u8a00\u65f6\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u7840\u7684\u8bed\u53e5\u548c\u7528\u6cd5\uff0c\u5b83\u4eec\u5c06\u5e2e\u52a9\u60a8\u5165\u95e8\uff1a<\/p>\n
1. \u8f93\u51fa\u5185\u5bb9\u5230\u63a7\u5236\u53f0\uff08\u5c4f\u5e55\uff09\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    std::cout << "Hello, World!" << std::endl;\n    return 0;\n}<\/code><\/pre>\n
2. \u5b9a\u4e49\u548c\u4f7f\u7528\u53d8\u91cf\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    int num = 10;\n    double pi = 3.14;\n    char letter = 'A';\n    bool isTrue = true;\n\n    std::cout << "Integer: " << num << std::endl;\n    std::cout << "Double: " << pi << std::endl;\n    std::cout << "Character: " << letter << std::endl;\n    std::cout << "Boolean: " << isTrue << std::endl;\n\n    return 0;\n}<\/code><\/pre>\n
3. \u8f93\u5165\u6570\u636e\u4ece\u63a7\u5236\u53f0\u83b7\u53d6\u7528\u6237\u8f93\u5165\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    int num;\n    std::cout << "Enter a number: ";\n    std::cin >> num;\n    std::cout << "You entered: " << num << std::endl;\n\n    return 0;\n}<\/code><\/pre>\n
4. \u6761\u4ef6\u8bed\u53e5\uff08if-else\uff09\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    int num;\n    std::cout << "Enter a number: ";\n    std::cin >> num;\n\n    if (num > 0) {\n        std::cout << "The number is positive." << std::endl;\n    } else if (num < 0) {\n        std::cout << "The number is negative." << std::endl;\n    } else {\n        std::cout << "The number is zero." << std::endl;\n    }\n\n    return 0;\n}<\/code><\/pre>\n
5. \u5faa\u73af\u8bed\u53e5\uff08for\u548cwhile\u5faa\u73af\uff09\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    \/\/ \u4f7f\u7528for\u5faa\u73af\u8f93\u51fa0\u52304\u7684\u6570\u5b57\n    for (int i = 0; i < 5; i++) {\n        std::cout << i << " ";\n    }\n    std::cout << std::endl;\n\n    \/\/ \u4f7f\u7528while\u5faa\u73af\u8f93\u51fa5\u52301\u7684\u6570\u5b57\n    int j = 5;\n    while (j >= 1) {\n        std::cout << j << " ";\n        j--;\n    }\n    std::cout << std::endl;\n\n    return 0;\n}<\/code><\/pre>\n
6. \u6570\u7ec4\uff1a<\/h2>\n
#include <iostream>\n\nint main() {\n    int numbers[5] = {1, 2, 3, 4, 5};\n\n    \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u5e76\u8f93\u51fa\n    for (int i = 0; i < 5; i++) {\n        std::cout << numbers[i] << " ";\n    }\n    std::cout << std::endl;\n\n    return 0;\n}<\/code><\/pre>\n
7. \u51fd\u6570\uff1a<\/h2>\n
#include <iostream>\n\n\/\/ \u51fd\u6570\u58f0\u660e\nint add(int a, int b);\n\nint main() {\n    int num1 = 10;\n    int num2 = 20;\n    int result = add(num1, num2);\n    std::cout << "Sum: " << result << std::endl;\n\n    return 0;\n}\n\n\/\/ \u51fd\u6570\u5b9a\u4e49\nint add(int a, int b) {\n    return a + b;\n}<\/code><\/pre>\n
\u8fd9\u4e9b\u662fC++\u4e2d\u7684\u57fa\u672c\u8bed\u53e5\u548c\u7528\u6cd5\uff0c\u5e0c\u671b\u5b83\u4eec\u80fd\u5e2e\u52a9\u60a8\u5165\u95e8\u5b66\u4e60\u3002\u968f\u7740\u60a8\u5bf9C++\u7684\u8fdb\u4e00\u6b65\u5b66\u4e60\uff0c\u60a8\u5c06\u4f1a\u63a2\u7d22\u66f4\u591a\u590d\u6742\u7684\u6982\u5ff5\u548c\u529f\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u60a8\u5b66\u4e60C\u8bed\u8a00\u65f6\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u7840\u7684\u8bed\u53e5\u548c\u7528\u6cd5\uff0c\u5b83\u4eec\u5c06\u5e2e\u52a9\u60a8\u5165\u95e8\uff1a 1. \u8f93\u51fa\u5185\u5bb9\u5230\u63a7\u5236\u53f0\uff08\u5c4f\u5e55\uff09\uff1a  […]<\/p>\n","protected":false},"author":1,"featured_media":1386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[31,73],"class_list":["post-1385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn","tag-cpp","tag-gcc"],"_links":{"self":[{"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/posts\/1385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/comments?post=1385"}],"version-history":[{"count":2,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/posts\/1385\/revisions"}],"predecessor-version":[{"id":1388,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/posts\/1385\/revisions\/1388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/media\/1386"}],"wp:attachment":[{"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/media?parent=1385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/categories?post=1385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lyvba.com\/index.php\/wp-json\/wp\/v2\/tags?post=1385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}