例:输入3个字符串,要求字母由大到小顺序输出
#include<iostream>
#include<string>
using namespace std;
int main(void)
{
string string1, string2, string3, temp;
cout << "please input three strings:";
cin >> string1 >> string2 >> string3;
if(string2 > string3)
{
temp = string2;
string2 = string3;
string3 = temp;
}
if(string1 <= string2)
{
cout << string1 << " " << string2 << " " << string3 << endl;
}
else if(string1 <= string3)
{
cout << string2 << " " << string1 << " " << string3 << endl;
}
else
{
cout << string2 << " " << string3 << " " << string1 << endl;
}
return 0;
}