C/C++对URL分割进行实现

分割URL，并提取其参数值
例如：http://download.pchome.net/php/tdownload2.php?sid=18377&url=/system/patch/srsp1.exe&svr=2&typ=0

#include #include #include char sU[]="http://***.***.***user_login_qp.php?uid=%BF%BC%C0%AD&pwd=7faac35ae7dcaddca9ef0c1b1c50e68a&flag=Test"; char *getUrlParam(char *sUrl,char *sParam) {     char s[1024],*p,a[80];     int L,n,k;     static char v[80];

    v[0]=0;     p=strchr(sUrl,'?');     if (!p) return v;     strncpy(s,p,1023);s[1023]=0;     s[0]='&';     a[0]='&';     strncpy(a+1,sParam,77);a[78]=0;     strcat(a,"=");     L=strlen(a);     p=strstr(s,a);     if (!p) return v;     p=p+L;     n=0;     while (1) {         if (p[n]=='&') {p[n]=0;break;}         if (p[n]==0) break;         if (n>=79) {p[n]=0;break;}         n++;     }     if (n>0) {         strcpy(a,p);         L=0;         p=a;         while (1) {             k=sscanf(p,"%%%2x",&n);             if (1==k) {                 v[L++]=(char)n;                 p+=3;             } else if (0==k) {                 v[L++]=p[0];                 p++;             } else break;         }         v[L]=0;     }     return v; } int main() {     printf("uid=%s\n",getUrlParam(sU,"uid"));     printf("pwd=%s\n",getUrlParam(sU,"pwd"));     printf("flag=%s\n",getUrlParam(sU,"flag"));     return 0; } //uid=考拉 //pwd=7faac35ae7dcaddca9ef0c1b1c50e68a //flag=Test

C++实现

//主要用一个string拆分函数就可以了，其他你自己就可以拆分了。 #include "stdafx.h" #include #include

using namespace std;

vector myStrsplit(string str, string separator); int _tmain(int argc, _TCHAR* argv[]) {   string testdata="http://download.pchome.net/php/tdownload2.php?sid=18377&url=/system/patch/srsp1.exe&svr=2&typ=0";   vector questiondata;   questiondata=myStrsplit(testdata,"?");   vector anddata;   int count1=questiondata.size();   vector::iterator ite;   string mainurl = questiondata[0];   string cna=questiondata[1];      return 0; } vector myStrsplit(string str, string separator) {    vector result;    int cutAt;    while( (cutAt = str.find_first_of(separator)) != str.npos )    {        if(cutAt > 0)        {            result.push_back(str.substr(0, cutAt));        }        str = str.substr(cutAt + 1);    }    if(str.length() > 0)   {        result.push_back(str);    }    return result; }