C/C++对URL分割进行实现

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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

C/C++ code

#include <stdio.h>#include <string.h>#include <stdlib.h>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 <vector>#include <string>
using namespace std;
vector<string> 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<string> questiondata;  questiondata=myStrsplit(testdata,"?");  vector<string> anddata;  int count1=questiondata.size();  vector<string>::iterator ite;  string mainurl = questiondata[0];  string cna=questiondata[1];     return 0;}vector<string> myStrsplit(string str, string separator) {    vector<string> 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; }

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