两种风格的字符串之间的比较

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比较两个string类型的字符串

#include<iostream>#include<string>#include<cstring>using namespace std;int main(){    string str1,str2;    cout<<"Enter two strings: "<<endl;    cin>>str1>>str2;    if(str1>str2)        cout<<"\""<<str1<<"\""<<"is bigger than "<<"\""<<str2<<"\""<<endl;    else if(str1<str2)         cout<<"\""<<str2<<"\""<<"is bigger than "<<"\""<<str1<<"\""<<endl;    else        cout<<"They are equal"<<endl;    return 0;}

比较两个C风格的字符串数组的值

#include<iostream>#include<string>#include<cstring>using namespace std;int main(){    const int str_size=80;    char *str1,*str2;    str1=new char[str_size];    str2=new char[str_size];    cout<<"Enter two strings:"<<endl;    cin>>str1>>str2;    int result;    result=strcmp(str1,str2);    if(result>0)        cout<<"\""<<str1<<"\""<<"is bigger than "            <<"\""<<str2<<"\""<<endl;    else if(result<0)        cout<<"\""<<str2<<"\""<<"is bigger than "            <<"\""<<str1<<"\""<<endl;    else        cout<<"They are equal."<<endl;    return 0;}

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