【模板小程序】字符串截取

/*
本程序说明：

字符串截取，如字符串qwer kkk/f/lsj sdfgh pppi/uhgf根据"/"分割为qwer kkk、f、lsj sdfgh pppi、uhgf

*/
#include <iostream>
#include <vector>
#include <string>

using namespace std;

//字符串截取
vector<string> split_string(const string& str, const string& pattern)
{
    vector<string> resVec;

    if ("" == str)
    {
        return resVec;
    }

    int index_start=0;
    size_t pos = str.find(pattern,index_start);
    while(pos!=string::npos)
    {
        resVec.push_back(str.substr(index_start,pos-index_start));
        index_start=(pos+=pattern.length());
        pos = str.find(pattern,index_start);
    }
    //截取最后一个
    resVec.push_back(str.substr(index_start,str.length()-index_start));

    return resVec;
}

int main()
{
    //测试样例
    //vector<string> resVec=split_string("qwer kkkflsj sdfgh pppiuhgf"," ");
    //vector<string> resVec=split_string("qwer kkk/f/lsj sdfgh pppi/uhgf","/");
    vector<string> resVec=split_string("qwer","/");
    for(auto val:resVec)
        cout<<val<<endl;

    return 0;
}