{"id":203,"date":"2024-01-08T17:59:34","date_gmt":"2024-01-08T09:59:34","guid":{"rendered":"https:\/\/www.zengtongxue.com\/?p=203"},"modified":"2024-01-08T21:30:52","modified_gmt":"2024-01-08T13:30:52","slug":"%e4%ba%94%e3%80%81if%e5%88%a4%e6%96%ad%ef%bc%88%e7%ac%ac11%e8%af%be-%e7%ac%ac13%e8%af%be%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.zengtongxue.com\/index.php\/2024\/01\/08\/%e4%ba%94%e3%80%81if%e5%88%a4%e6%96%ad%ef%bc%88%e7%ac%ac11%e8%af%be-%e7%ac%ac13%e8%af%be%ef%bc%89\/","title":{"rendered":"\u4e94\u3001if\u5224\u65ad\uff08\u7b2c11\u8bfe-\u7b2c14\u8bfe\uff09"},"content":{"rendered":"\n

\u8bfe\u7a0b\u94fe\u63a5\uff1a<\/p>\n\n\n\n

11.if\uff08\u4e0a\uff09<\/a><\/p>\n\n\n\n

12.if\uff08\u4e2d\uff09<\/a><\/p>\n\n\n\n

13.if\uff08\u4e0b\uff09<\/a><\/p>\n\n\n\n

14.if\u5d4c\u5957<\/a><\/p>\n\n\n\n

Bool \u53d8\u91cf<\/h3>\n\n\n\n

\u5728\u4e0a\u7bc7\u6587\u7ae0\u4e2d\u5df2\u7ecf\u4ecb\u7ecd\u4e86bool\u53d8\u91cf\uff0c\u8fd9\u91cc\u4e0d\u91cd\u590d\u7b14\u8bb0\u3002\u53ef\u67e5\u770b\ud83d\udc49Bool<\/a><\/p>\n\n\n\n

\u8fd0\u7b97\u7b26\u7b49\u4e8e\u548c\u4e0d\u7b49\u4e8e<\/h4>\n\n\n\n

\u201c=\u201d\u662f\u8d4b\u503c\u7b26\u53f7\uff0c\u201c==\u201d\uff08\u4e24\u4e2a\u8fde\u7eed\u7684\u7b49\u53f7\uff09\u662f\u8fd0\u7b97\u4e2d\u7684\u7b49\u4e8e\uff1b\u201c\uff01=\u201d\u662f\u4e0d\u7b49\u4e8e\u3002<\/p>\n\n\n\n

if<\/h3>\n\n\n\n

if\u8bed\u53e5\u6709\u4ee5\u4e0b\u51e0\u79cd\u5f62\u5f0f\uff1a<\/p>\n\n\n\n

bool bo1 = true\n\/\/if(\u8fd9\u4e2a\u91cc\u9762\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u8868\u8fbe\u5f0f)\uff0c\u6bd4\u5982if\uff081=0\uff09\u3002\nif(bo1){\n   \/\/\u5f53if\uff08\u5185\u7684\u503c\u4e3atrue\uff09\u65f6\u6267\u884c\u5927\u62ec\u53f7\u5185\u7684\u4ee3\u7801\u3002\n}<\/code><\/pre>\n\n\n\n
\u5c0f\u7ec3\u4e60<\/h4>\n\n\n\n
\u5728\u4e0d\u770b\u89c6\u9891\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u4ee3\u7801\u5b9e\u73b0\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n
1.\u63d0\u793a\u7528\u6237\u8f93\u5165\u540d\u5b57<\/p>\n\n\n\n
2.\u5224\u65ad\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u662f\u5426\u662f\u201c\u5f20\u4e09\u201d<\/p>\n\n\n\n
3.\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u662f\u201c\u5f20\u4e09\u201d\uff0c\u5219\u5728\u5c4f\u5e55\u4e0a\u5206\u4e24\u884c\u5206\u522b\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\u201d\u3001\u201c\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\u201d\u3002<\/p>\n\n\n\n
            \/\/\u63d0\u793a\u8f93\u5165\n            Console.WriteLine(\"\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57\uff1a\");\n            \/\/\u7528\u4e00\u4e2a\u53d8\u91cf\u5b58\u50a8\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\n            string name = Console.ReadLine();\n            \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n\n\n            if( name == \"\u5f20\u4e09\" ){\n\n                Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\");\n                \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n                name = \"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\";\n                Console.WriteLine(\"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\");\n\n            }\n\n            \/\/\u76d1\u6d4b\u7528\u6237\u8f93\u5165\u3002\u8fd9\u91cc\u662f\u4e3a\u4e86\u907f\u514d\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\u81ea\u52a8\u9000\u51fa\n            Console.ReadKey();<\/code><\/pre>\n\n\n\n
\u4e00\u5b9a\u8981\u5728visual studio\u4e2d\u5c1d\u8bd5\u7f16\u5199\u4e00\u4e0b\uff0c\u6211\u81ea\u5df1\u5728\u5199\u6587\u7ae0\u7684\u65f6\u5019\u7f16\u8f91\u4ee5\u4e3a\u81ea\u5df1\u5199\u7684\u662f\u5bf9\u7684\uff0c\u4f46\u590d\u5236\u5230\u7f16\u8bd1\u5668\u8fd0\u884c\u5c31\u4f1a\u53d1\u73b0\u6709\u5f88\u591a\u95ee\u9898\uff1a1.\u4e2d\u82f1\u6587\u6807\u70b9\u7b26\u53f7\uff1b2.\u8d4b\u503c\u7b26\u53f7\u548c\u7b49\u4e8e\u6ca1\u5f04\u6e05\u695a\u3002<\/mark><\/p>\n\n\n\n
else if<\/h3>\n\n\n\n
int a = 1\nif\uff08a < 0\uff09{\n \/\/\u6ee1\u8db3a < 0 \u5373\u5c0f\u62ec\u53f7\u5185\u4e3atrue\u65f6\u6267\u884c\u8fd9\u4e2a\u82b1\u62ec\u53f7\u4e2d\u7684\u4ee3\u7801,\u4e0d\u518d\u7ba1\u540e\u9762\u7684\u4ee3\u7801\u3002\n}else if(a > 0 ){\n \/\/\u4e0d\u6ee1\u8db3 a < 0 \u65f6\uff0c\u5982\u679c\u6ee1\u8db3 a > 0 \u65f6\u6267\u884c\u6b64\u82b1\u62ec\u53f7\u5185\u7684\u4ee3\u7801\u3002\n}<\/code><\/pre>\n\n\n\n
\u5c0f\u7ec3\u4e60<\/h4>\n\n\n\n
\u5728\u4e0d\u770b\u89c6\u9891\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u4ee3\u7801\u5b9e\u73b0\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n
1.\u63d0\u793a\u7528\u6237\u8f93\u5165\u540d\u5b57<\/p>\n\n\n\n
2.\u5224\u65ad\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u662f\u5426\u662f\u201c\u5f20\u4e09\u201d<\/p>\n\n\n\n
3.\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u662f\u201c\u5f20\u4e09\u201d\uff0c\u5219\u5728\u5c4f\u5e55\u4e0a\u5206\u4e24\u884c\u5206\u522b\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\u201d\u3001\u201c\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\u201d\u3002<\/p>\n\n\n\n
4.\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u662f\u201c\u674e\u56db\u201d\uff0c\u5219\u5728\u5219\u5728\u5c4f\u5e55\u4e0a\u5206\u4e24\u884c\u5206\u522b\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u662f\u674e\u56db\u201d\u3001\u201c\u4f60\u7684\u540d\u5b57\u662f\u65e0\u60c5\u94c1\u624b\u674e\u56db\u201d\u3002<\/p>\n\n\n\n
            \/\/\u63d0\u793a\u8f93\u5165\n            Console.WriteLine(\"\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57\uff1a\");\n            \/\/\u7528\u4e00\u4e2a\u53d8\u91cf\u5b58\u50a8\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\n            string name = Console.ReadLine();\n            \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n\n\n            if( name == \"\u5f20\u4e09\" ){\n\n                Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\");\n                \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n                name = \"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\";\n                Console.WriteLine(\"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\");\n\n            }else if(name == \"\u674e\u56db\"){\n                Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u674e\u56db\");\n                \/\/\u7ed9name\u8d4b\u503c\u4e3a\u65e0\u60c5\u94c1\u624b\u674e\u56db\n                Console.WriteLine(\"\u4f60\u7684\u540d\u5b57\u662f\u65e0\u60c5\u94c1\u624b\u674e\u56db\");\n            }\n\n            \/\/\u76d1\u6d4b\u7528\u6237\u8f93\u5165\u3002\u8fd9\u91cc\u662f\u4e3a\u4e86\u907f\u514d\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\u81ea\u52a8\u9000\u51fa\n            Console.ReadKey();<\/code><\/pre>\n\n\n\n
else<\/h3>\n\n\n\n
\u53ea\u80fd\u5148\u5199 else if \uff0c\u4e0d\u80fd\u5148\u5199else \u540e\u518d\u52a0else if\u3002<\/p>\n\n\n\n
int a = 1\nif\uff08a<0\uff09{\n     \/\/\u5982\u679ca<0\u8fd0\u884c\n}else{\n     \/\/\u5426\u5219\u6267\u884c\n}<\/code><\/pre>\n\n\n\n
\u5c0f\u7ec3\u4e60<\/h4>\n\n\n\n
\u5728\u4e0d\u770b\u89c6\u9891\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u4ee3\u7801\u5b9e\u73b0\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n
1.\u63d0\u793a\u7528\u6237\u8f93\u5165\u540d\u5b57<\/p>\n\n\n\n
2.\u5224\u65ad\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u662f\u5426\u662f\u201c\u5f20\u4e09\u201d<\/p>\n\n\n\n
3.\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u662f\u201c\u5f20\u4e09\u201d\uff0c\u5219\u5728\u5c4f\u5e55\u4e0a\u5206\u4e24\u884c\u5206\u522b\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\u201d\u3001\u201c\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\u201d\u3002<\/p>\n\n\n\n
4.\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u662f\u201c\u674e\u56db\u201d\uff0c\u5219\u5728\u5219\u5728\u5c4f\u5e55\u4e0a\u5206\u4e24\u884c\u5206\u522b\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u662f\u674e\u56db\u201d\u3001\u201c\u4f60\u7684\u540d\u5b57\u662f\u65e0\u60c5\u94c1\u624b\u674e\u56db\u201d\u3002<\/p>\n\n\n\n
5.\u5982\u679c\u8f93\u5165\u7684\u65e2\u4e0d\u662f\u5f20\u4e09\u4e5f\u4e0d\u662f\u674e\u56db\uff0c\u5219\u5728\u5c4f\u5e55\u4e0a\u8f93\u51fa\u201c\u4f60\u5c45\u7136\u53eb+\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u201d<\/p>\n\n\n\n
using System;\nusing System.Collections.Generic;\nusing System.Linq;\nusing System.Text;\nusing System.Threading.Tasks;\n\nnamespace ConsoleApp1\n{\n    internal class Program\n    {\n        static void Main()\n        {\n\n            \/\/\u63d0\u793a\u8f93\u5165\n            Console.WriteLine(\"\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57\uff1a\");\n            \/\/\u7528\u4e00\u4e2a\u53d8\u91cf\u5b58\u50a8\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\n            string name = Console.ReadLine();\n            \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n\n\n            if (name == \"\u5f20\u4e09\")\n            {\n\n                Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u662f\u5f20\u4e09\");\n                \/\/\u91cd\u65b0\u7ed9name\u8d4b\u503c\n                name = \"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\";\n                Console.WriteLine(\"\u4f60\u7684\u540d\u5b57\u662f\u6cd5\u5916\u72c2\u5f92\u5f20\u4e09\");\n\n            }\n            else if (name == \"\u674e\u56db\")\n            {\n                Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u674e\u56db\");\n                \/\/\u7ed9name\u8d4b\u503c\u4e3a\u65e0\u60c5\u94c1\u624b\u674e\u56db\n                Console.WriteLine(\"\u4f60\u7684\u540d\u5b57\u662f\u65e0\u60c5\u94c1\u624b\u674e\u56db\");\n            }else\n            {\n                Console.WriteLine(\"\u4f60\u5c45\u7136\u53eb\" + name);\n            }\n\n            \/\/\u76d1\u6d4b\u7528\u6237\u8f93\u5165\u3002\u8fd9\u91cc\u662f\u4e3a\u4e86\u907f\u514d\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\u81ea\u52a8\u9000\u51fa\n            Console.ReadKey();\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
if\u5d4c\u5957<\/h3>\n\n\n\n
if\u5224\u65ad\u5185\uff0c\u53ef\u4ee5\u5d4c\u5957\u5176\u5b83\u7684if<\/p>\n\n\n\n
if(){\n     if(){\n\n          }\n}<\/code><\/pre>\n\n\n\n
\u5c0f\u7ec3\u4e60<\/h4>\n\n\n\n
\u5728\u4e0d\u770b\u89c6\u9891\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u4ee3\u7801\u5b9e\u73b0\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n
1.\u63d0\u793a\u7528\u6237\u8f93\u5165\u540d\u5b57<\/p>\n\n\n\n
2.\u63d0\u793a\u7528\u6237\u8f93\u5165\u6027\u522b<\/p>\n\n\n\n
3.\u5224\u65ad\u8f93\u5165\u7684\u540d\u5b57\u662f\u5426\u662f\u5f20\u4e09\uff0c\u5982\u679c\u8f93\u5165\u7684\u662f\u5f20\u4e09\u518d\u5224\u65ad\u8f93\u5165\u7684\u6027\u522b\u662f\u5426\u662f\u7537\u3002<\/p>\n\n\n\n
4.\u5982\u679c\u662f\uff0c\u5219\u5728\u5c4f\u5e55\u4e0a\u8f93\u51fa\u201c\u4f60\u8f93\u5165\u7684\u540d\u5b57\u662f\u5f20\u4e09\uff0c\u662f\u7537\u201d\u3002<\/p>\n\n\n\n
Console.WriteLine(\"\u7528\u6237\u540d\uff1a\");\nstring name = Console.ReadLine();\nConsole.WriteLine(\"\u6027\u522b\");\nstring gender = Console.ReadLine();\nif(name == \"\u5f20\u4e09\"){\n   Console.WriteLine(\"\u5f20\u4e09\");\n   if(gender == \"\u7537\"){\n    Console.WriteLine(\"\u4f60\u8f93\u5165\u7684\u540d\u5b57\u662f\u5f20\u4e09\uff0c\u662f\u7537\");\n   }\n\n}<\/code><\/pre>\n\n\n\n
\u62d3\u5c55<\/h2>\n\n\n\n
\u8868\u8fbe\u5f0f\u548c\u6761\u4ef6\u8868\u8fbe\u5f0f<\/h4>\n\n\n\n
\u8868\u8fbe\u5f0f\ud83d\udc49C#\u8fd0\u7b97\u7b26\u548c\u8868\u8fbe\u5f0f<\/a><\/p>\n\n\n\n
&& \u4e14<\/h5>\n\n\n\n
&& \u4e24\u8005\u90fd\u4e3a\u771f\uff0c\u8fd0\u7b97\u7ed3\u679c\u4e3a\u771f\uff1atrue && true \uff0c\u7ed3\u679c\u4e3atrue<\/p>\n\n\n\n
&& \u4efb\u610f\u4e00\u4e2a\u4e3a\u5047\uff0c\u8fd0\u7b97\u7ed3\u679c\u4e3a\u5047\uff1atrue && false \uff0c \u7ed3\u679c\u4e3aflase<\/p>\n\n\n\n
|| \u6216<\/h5>\n\n\n\n
|| \u4efb\u610f\u4e00\u4e2a\u4e3a\u771f\uff0c\u8fd0\u7b97\u7ed3\u679c\u4e3a\u771f\uff1atrue || false \uff0c \u7ed3\u679c\u4e3a\u4e3aflase<\/p>\n\n\n\n
\u5c0f\u7ec3\u4e60<\/h4>\n\n\n\n
\u5224\u65ad69\u5206\u7684\u5206\u503c\u5904\u4e8e\u4ec0\u4e48\u6c34\u5e73\uff080-59\u5206\u4e0d\u53ca\u683c\uff0c60-80\u5206\u5408\u683c\uff0c81-100\u4f18\u79c0\u3002\uff09<\/p>\n\n\n\n
            int a = 69;\n            if(a < 59){\n                Console.WriteLine(\"\u4e0d\u53ca\u683c\");\n            }else if(a > 59 && a < 81){\n                Console.WriteLine(\"\u5408\u683c\");\n            }else\n            {\n                Console.WriteLine(\"\u4f18\u79c0\");\n            }\n\n            \/\/\u76d1\u6d4b\u7528\u6237\u8f93\u5165\u3002\u8fd9\u91cc\u662f\u4e3a\u4e86\u907f\u514d\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\u81ea\u52a8\u9000\u51fa\n            Console.ReadKey();<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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