string分割

Posted 2021-03-21 toujizhe

#include <string>

#include <vector>

using std::string;  //使用string对象

using std::vector;  //使用vector

 

 

 

void Split(const std::string& src, const std::string& separator, std::vector<std::string>& dest);//函数原型

 

 

void Split(const std::string& src, const std::string& separator, std::vector<std::string>& dest) //字符串分割到数组

{

 

        //参数1：要分割的字符串；参数2：作为分隔符的字符；参数3：存放分割后的字符串的vector向量

 

 string str = src;

 string substring;

 string::size_type start = 0, index;

 dest.clear();

 index = str.find_first_of(separator,start);

 do

 {

  if (index != string::npos)

  {   

   substring = str.substr(start,index-start );

   dest.push_back(substring);

   start =index+separator.size();

   index = str.find(separator,start);

   if (start == string::npos) break;

  }

 }while(index != string::npos);

 

 //the last part

 substring = str.substr(start);

 dest.push_back(substring);

}