string

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参照算法笔记P202


#include<iostream>#include<string>using namespace std;int main(){string s1="abc";string s2="def";string s3=s1+s2;cout<<s3<<endl; //+拼接 字符串 ,字符串还能用< >等比较,比较规则是 字典序string s4="abcxyz",s5="opq";s4.insert(3,s5);//insert(pos,string)cout<<s4<<endl; //abcopqxyz string s6="abcxyz",s7="opq";s6.insert(s6.begin()+3,s7.begin(),s7.end());//insert(it,it2,it3)cout<<s6<<endl;//abcopqxyz s6.erase(s6.begin()+1);cout<<s6<<endl;//acopqxyz s6.erase(s6.begin()+1,s6.end()-2);//erase(first,last)cout<<s6<<endl;//ayz s6.erase(1,2);//erase(pos,length) cout<<s6<<endl;//a}