题解|#转换空格#
https://www.nowcoder.com/share/jump/5876869471694233820756
class Solution{public:string replaceSpace(string s){// vector<string> ans;string ans="";
for(auto x:s) { if(x==' ') { ans=ans+"%20"; }else { ans+=x; } } return ans; }
};
#如何判断面试是否凉了#