goahead内部url中键值数字读取

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// test.cpp : 定义控制台应用程序的入口点。 //   #include "stdafx.h"   #include <iostream> using namespace std;   #define CGI_MAX_SOCKET  256 #define CGI_MAX_BUF     1024 #define CGI_MAX_LEN     256     static int GetStrParamValue(const char *purl, const char *pkey, char *pkeyvalue,int maxlen) {     const char      *phead;     const char      *pdst = purl;     const char      *pend = purl;     char            *presult = NULL;     int                 len = 0;       //find key     //  printf("purl:%s pkey:%s\n",purl,pkey);     while(1){         phead = strstr(pdst, pkey);         if (!phead)         {             return -1;         }         presult = (char*)(phead - 1);       //split chart         //      printf("presult %x\n",presult[0]);         if ((presult[0] == 0x3f) || (presult[0] == 0x26))   //0x3f->? 0x26->&         {             break;         }         pdst += strlen(pkey);     }     //  printf("phead0:%s\n",phead);     //move phead to start of value,eg:value=12345;,then move phead=12345;     phead = phead + strlen(pkey) ;     //find key end     pend = strstr(phead, "&");     //if find end of key     if (pend)     {   //find end of key         len = pend - phead;         if (len > maxlen){             len = maxlen;         }         memcpy(pkeyvalue, phead, len);         //printf("phead1:%s pend:%s===len=%d\n",phead,pend,len);         return 0;           }     //not find end of key,this is cgi end     len = strlen(phead);     if (len > maxlen){         len = maxlen;     }     memcpy(pkeyvalue, phead, len);     //printf("keyvalue:%s phead2:%s\n",pkey,phead);     return 0; }       #define     NON_NUM     '0' static int hex2num(char c) {     if (c>='0' && c<='9') return c - '0';     if (c>='a' && c<='z') return c - 'a' + 10;     if (c>='A' && c<='Z') return c - 'A' + 10;     return NON_NUM; }   static int URLDecode(const char* str, const int strSize, char* result, const int resultSize) {     char ch,ch1,ch2;     int i;     int j = 0;//record result index       if ((str==NULL) || (result==NULL) || (strSize<=0) || (resultSize<=0)) {         return 0;     }       for ( i=0; (i<strSize) && (j<resultSize); ++i) {         ch = str[i];         switch (ch) {             case '+':                 result[j++] = ' ';                 break;             case '%':                 if (i+2<strSize) {                     ch1 = hex2num(str[i+1]);//high 4 bit                     ch2 = hex2num(str[i+2]);//low 4 bit                     if ((ch1!=NON_NUM) && (ch2!=NON_NUM))                         result[j++] = (char)((ch1<<4) | ch2);                     i += 2;                     break;                 } else {                     break;                 }             default:                 result[j++] = ch;                 break;         }     }     result[j] = 0;     return j; }   int GetKeyValue(char *pparam,char *pkey,char *pvalue) {     int                 iRet = -1;     int                 len = strlen(pkey);     char                    keyname[CGI_MAX_LEN];     char                    keyvalue[CGI_MAX_LEN];     char                            decoderbuf[CGI_MAX_LEN];       //  printf("get key value=%d value:%s\n",len,pkey);     //  printf("pparam:%s pkey:%s pvalue:%s\n",pparam,pkey,pvalue);     //check maxlen     if( (!pparam) || (!pkey) || (!pvalue)){         return iRet;     }     memset(keyname,0x00,CGI_MAX_LEN);     strcpy(keyname,pkey);     keyname[len]='=';     //   printf("get key value1 pkey=%s\n",keyname);     memset(keyvalue,0x00,CGI_MAX_LEN);     iRet = GetStrParamValue(pparam, keyname, keyvalue,CGI_MAX_LEN - 1);     if (iRet == 0x00){         memset(decoderbuf,0x00,CGI_MAX_LEN);         URLDecode(keyvalue,CGI_MAX_LEN,decoderbuf,CGI_MAX_LEN-1);         strcpy(pvalue,decoderbuf);         //       printf("pvalue:%s\n",pvalue);     }     //  printf("get key value2=%d\n",iRet);     return iRet; } int  GetKeyInt(char *pparam,char *pkey,int *pvalue) {     int                     iRet = -1;     char                            keyvalue[CGI_MAX_LEN];       memset( keyvalue, 0x00, CGI_MAX_LEN );     iRet = GetKeyValue(pparam, pkey, keyvalue);     //printf("iRet %d pkey:%s keyvalue:%s\n",iRet,pkey,keyvalue);     if (iRet == 0x00){         *pvalue = atoi(keyvalue);         //printf("*pvalue=%d\n", *pvalue);     }     return iRet; } int _tmain(int argc, _TCHAR* argv[]) {         //char value[100];     int value = 0;     int *pvalue = &value; //  GetStrParamValue("https://www.baidu.com/s?wd=error%20C2440%3A%20","wd",value,100);     GetKeyInt("https://www.baidu.com/s?wd=error%20C2440%3A%20&abc=123","abc",pvalue);     cout<<value<<endl;     system("PAUSE");       return 0; }

　　输出123...