spilt函数的实现

//spilt函数的实现
//假设以空格切分:char c = ' ';
class Solution 
{
    vector<string> res; 
    void spilt(string s,char c,vector<string> &res)
    {
        istringstream iss(s);
        string temp;
        while(getline(iss,temp,c))
        {
            //如果temp不为空，才可以添加进去
            if(!temp.empty()) res.push_back(temp);
        }
    }
};