{"id":252,"date":"2018-10-20T13:50:04","date_gmt":"2018-10-20T05:50:04","guid":{"rendered":"https:\/\/blog.tcreopargh.xyz\/?p=252"},"modified":"2018-10-28T13:21:26","modified_gmt":"2018-10-28T05:21:26","slug":"c-c%e7%ae%80%e5%8d%95%e5%9b%9b%e5%88%99%e8%ae%a1%e7%ae%97%e5%99%a8","status":"publish","type":"post","link":"https:\/\/blog.tcreopargh.xyz\/?p=252","title":{"rendered":"(C\/C++)\u7b80\u5355\u56db\u5219\u8ba1\u7b97\u5668"},"content":{"rendered":"\n

\u4e00\u4e2a\u7b80\u5355\u7684\u56db\u5219\u8fd0\u7b97\u8ba1\u7b97\u5668\uff0c\u652f\u6301\u5c0f\u6570\u3001\u6c42\u4f59\u3001\u6c42\u5e42\u3001\u4f7f\u7528\u8fd0\u7b97\u7ed3\u679c\u8fde\u7eed\u8ba1\u7b97\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n\n

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<\/div><\/td>
\/\/Powered by TCreopargh<\/span>
\n#include<stdio.h><\/span>
\n#include<string.h><\/span>
\n#include<stdlib.h><\/span>
\n#include<math.h><\/span>
\nint<\/span> main(<\/span>int<\/span> argc,<\/span> char<\/span> *<\/span>argv[<\/span>]<\/span>)<\/span>
\n{<\/span>
\n    char<\/span> first[<\/span>400<\/span>]<\/span>,<\/span>last[<\/span>400<\/span>]<\/span>,<\/span>Ans[<\/span>]<\/span>=<\/span>"ans"<\/span>,<\/span>Quit[<\/span>]<\/span>=<\/span>"quit"<\/span>,<\/span>Reset[<\/span>]<\/span>=<\/span>"reset"<\/span>;<\/span>
\n    double<\/span> a,<\/span>b,<\/span>result=<\/span>0<\/span>,<\/span>ans=<\/span>0<\/span>;<\/span>
\n    int<\/span> opPos=<\/span>0<\/span>,<\/span>operatorExist,<\/span>i,<\/span>k;<\/span>
\n    char<\/span> input[<\/span>800<\/span>]<\/span>;<\/span>
\n    char<\/span> op;<\/span>
\n    puts<\/span><\/a>(<\/span>"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/"<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"\/\/    Simple Calculator    \/\/"<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/"<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"Input two numbers containing an operator between them."<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"e.g. input \\"<\/span>5*4\\"<\/span> to calculate 5 multiplied by 4."<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"Input \\"<\/span>ans\\"<\/span> instead of a number to use the result of the previous calculation."<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"Input \\"<\/span>quit\\"<\/span> to exit the program."<\/span>)<\/span>;<\/span>
\n    puts<\/span><\/a>(<\/span>"Input \\"<\/span>reset\\"<\/span> to reset the program."<\/span>)<\/span>;<\/span>
\n    while<\/span>(<\/span>1<\/span>)<\/span>
\n    {<\/span>
\n        memset<\/span><\/a>(<\/span>first,<\/span>0<\/span>,<\/span>sizeof<\/span>(<\/span>first)<\/span>)<\/span>;<\/span>
\n        memset<\/span><\/a>(<\/span>last,<\/span>0<\/span>,<\/span>sizeof<\/span>(<\/span>last)<\/span>)<\/span>;<\/span>
\n        i=<\/span>0<\/span>;<\/span>
\n        k=<\/span>0<\/span>;<\/span>
\n        operatorExist=<\/span>0<\/span>;<\/span>
\n        gets<\/span><\/a>(<\/span>input)<\/span>;<\/span>
\n        if<\/span>(<\/span>!<\/span>strcmp<\/span><\/a>(<\/span>input,<\/span>Quit)<\/span>)<\/span>
\n            break<\/span>;<\/span>
\n        if<\/span>(<\/span>!<\/span>strcmp<\/span><\/a>(<\/span>input,<\/span>Reset)<\/span>)<\/span>
\n        {<\/span>
\n            system<\/span><\/a>(<\/span>"cls"<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/"<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"\/\/    Simple Calculator    \/\/"<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/"<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"Input two numbers containing an operator between them."<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"e.g. input \\"<\/span>5*4\\"<\/span> to calculate 5 multiplied by 4."<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"Input \\"<\/span>ans\\"<\/span> instead of a number to use the result of the previous calculation."<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"Input \\"<\/span>quit\\"<\/span> to exit the program."<\/span>)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"Input \\"<\/span>reset\\"<\/span> to reset the program."<\/span>)<\/span>;<\/span>
\n            ans=<\/span>0<\/span>;<\/span>
\n            continue<\/span>;<\/span>
\n        }<\/span>
\n        while<\/span>(<\/span>input[<\/span>i]<\/span>!=<\/span>'\\0<\/span>'<\/span>)<\/span>
\n        {<\/span>
\n            if<\/span>(<\/span>input[<\/span>i]<\/span>==<\/span>'+'<\/span>||<\/span>input[<\/span>i]<\/span>==<\/span>'-'<\/span>||<\/span>input[<\/span>i]<\/span>==<\/span>'*'<\/span>||<\/span>input[<\/span>i]<\/span>==<\/span>'\/'<\/span>||<\/span>input[<\/span>i]<\/span>==<\/span>'%'<\/span>||<\/span>input[<\/span>i]<\/span>==<\/span>'^'<\/span>)<\/span>
\n            {<\/span>
\n                op=<\/span>input[<\/span>i]<\/span>;<\/span>
\n                opPos=<\/span>i;<\/span>
\n                operatorExist=<\/span>1<\/span>;<\/span>
\n                break<\/span>;<\/span>
\n            }<\/span>
\n            i++;<\/span>
\n        }<\/span>
\n        if<\/span>(<\/span>!<\/span>operatorExist)<\/span>
\n        {<\/span>
\n            if<\/span>(<\/span>!<\/span>strcmp<\/span><\/a>(<\/span>input,<\/span>Ans)<\/span>)<\/span>
\n                result=<\/span>ans;<\/span>
\n            else<\/span>
\n                result=<\/span>atof<\/span><\/a>(<\/span>input)<\/span>;<\/span>
\n            ans=<\/span>result;<\/span>
\n            if<\/span>(<\/span>result-<\/span>(<\/span>int<\/span>)<\/span>result==<\/span>0<\/span>)<\/span>
\n                printf<\/span><\/a>(<\/span>"=%d\\n<\/span>"<\/span>,<\/span>(<\/span>int<\/span>)<\/span>result)<\/span>;<\/span>
\n            else<\/span>
\n                printf<\/span><\/a>(<\/span>"=%.6lf\\n<\/span>"<\/span>,<\/span>result)<\/span>;<\/span>
\n            puts<\/span><\/a>(<\/span>"Your input does not contain an operator. Please enter the expression correctly."<\/span>)<\/span>;<\/span>
\n            continue<\/span>;<\/span>
\n        }<\/span>
\n        strncpy<\/span><\/a>(<\/span>first,<\/span>input,<\/span>opPos)<\/span>;<\/span>
\n        for<\/span>(<\/span>i=<\/span>opPos+<\/span>1<\/span>;<\/span> input[<\/span>i]<\/span>!=<\/span>'\\0<\/span>'<\/span>;<\/span> i++<\/span>)<\/span>
\n        {<\/span>
\n            last[<\/span>k]<\/span>=<\/span>input[<\/span>i]<\/span>;<\/span>
\n            k++;<\/span>
\n        }<\/span>
\n        if<\/span>(<\/span>!<\/span>strcmp<\/span><\/a>(<\/span>first,<\/span>Ans)<\/span>)<\/span>
\n            a=<\/span>ans;<\/span>
\n        else<\/span>
\n            a=<\/span>atof<\/span><\/a>(<\/span>first)<\/span>;<\/span>
\n        if<\/span>(<\/span>!<\/span>strcmp<\/span><\/a>(<\/span>last,<\/span>Ans)<\/span>)<\/span>
\n            b=<\/span>ans;<\/span>
\n        else<\/span>
\n            b=<\/span>atof<\/span><\/a>(<\/span>last)<\/span>;<\/span>
\n        switch<\/span> (<\/span>op)<\/span>
\n        {<\/span>
\n            case<\/span> '+'<\/span>:<\/span>
\n                result=<\/span>a+<\/span>b;<\/span>
\n                break<\/span>;<\/span>
\n            case<\/span> '-'<\/span>:<\/span>
\n                result=<\/span>a-<\/span>b;<\/span>
\n                break<\/span>;<\/span>
\n            case<\/span> '*'<\/span>:<\/span>
\n                result=<\/span>a*<\/span>b;<\/span>
\n                break<\/span>;<\/span>
\n            case<\/span> '\/'<\/span>:<\/span>
\n                if<\/span>(<\/span>b==<\/span>0<\/span>)<\/span>
\n                {<\/span>
\n                    puts<\/span><\/a>(<\/span>"ERR: cannot devide a number by 0."<\/span>)<\/span>;<\/span>
\n                    continue<\/span>;<\/span>
\n                }<\/span>
\n                result=<\/span>a\/<\/span>b;<\/span>
\n                break<\/span>;<\/span>
\n            case<\/span> '%'<\/span>:<\/span>
\n                if<\/span>(<\/span>b==<\/span>0<\/span>)<\/span>
\n                {<\/span>
\n                    puts<\/span><\/a>(<\/span>"ERR: cannot devide a number by 0."<\/span>)<\/span>;<\/span>
\n                    continue<\/span>;<\/span>
\n                }<\/span>
\n                result=<\/span>(<\/span>int<\/span>)<\/span>a%<\/span>(<\/span>int<\/span>)<\/span>b;<\/span>
\n                break<\/span>;<\/span>
\n            case<\/span> '^'<\/span>:<\/span>
\n                result=<\/span>pow<\/span><\/a>(<\/span>a,<\/span>b)<\/span>;<\/span>
\n                break<\/span>;<\/span>
\n            default<\/span>:<\/span>
\n                puts<\/span><\/a>(<\/span>"Invalid imput. Please try again."<\/span>)<\/span>;<\/span>
\n                continue<\/span>;<\/span>
\n        }<\/span>
\n        if<\/span>(<\/span>result-<\/span>(<\/span>int<\/span>)<\/span>result==<\/span>0<\/span>)<\/span>
\n            printf<\/span><\/a>(<\/span>"=%d\\n<\/span>"<\/span>,<\/span>(<\/span>int<\/span>)<\/span>result)<\/span>;<\/span>
\n        else<\/span>
\n            printf<\/span><\/a>(<\/span>"=%.6lf\\n<\/span>"<\/span>,<\/span>result)<\/span>;<\/span>
\n        ans=<\/span>result;<\/span>
\n    }<\/span>
\n    return<\/span> 0<\/span>;<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n\n","protected":false},"excerpt":{"rendered":"

\u4e00\u4e2a\u7b80\u5355\u7684\u56db\u5219\u8fd0\u7b97\u8ba1\u7b97\u5668\uff0c\u652f\u6301\u5c0f\u6570\u3001\u6c42\u4f59\u3001\u6c42\u5e42\u3001\u4f7f\u7528\u8fd0\u7b97\u7ed3\u679c\u8fde\u7eed\u8ba1\u7b97\u7b49\u529f\u80fd\u3002 1234567891011121 […]<\/p>\n","protected":false},"author":1,"featured_media":253,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,7,32,10],"tags":[16,40,34],"_links":{"self":[{"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/posts\/252"}],"collection":[{"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=252"}],"version-history":[{"count":8,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/posts\/252\/revisions"}],"predecessor-version":[{"id":284,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/posts\/252\/revisions\/284"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=\/wp\/v2\/media\/253"}],"wp:attachment":[{"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tcreopargh.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}