#include<iostream>
#include<string>
using namespace std;
int main()
{
  int i,j;
  string str[5]={"we","go","to","school","today"};
  string t;
  for(i=0;i<5;i++)
    for(j=0;j<5-i;j++)
    {
     if(str[j]>str[j+1])
     {
      t=str[j];
      str[j]=str[j+1];
      str[j+1]=t;
     }
    }

  for(i=0;i<5;i++)
    cout<<str[i]<<" ";
  cout<<endl;
  return 0;
}

这是C++ 需要我帮你转到C++版块么

// g++ -Wall -fomit-frame-pointer -funroll-loops -Ofast -march=corei7-avx -msse4.2 -mavx -std=c++11 a.cpp -lm -o a
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

using std::cout;
using std::endl;
using std::vector;
using std::string;
using std::sort;

int main(void)
{
    vector<string> content = {"we", "go", "to", "school", "today"};
    sort(content.begin(), content.end());
    for (auto output : content)
        cout << output << endl;
   
    return 0;
}

我口味比较重 C++11 献丑了

#include<iostream>
#include<string>
using namespace std;
int main()
{
  int i,j;
  string str[6]={"we","go","to","school","today"};//注
  string t;
  for(i=0;i<5;i++)
    for(j=0;j<5-i;j++)
    {
     if(str[j]>str[j+1])
     {
      t=str[j];
      str[j]=str[j+1];
      str[j+1]=t;
     }
    }

  for(i=0;i<6;i++)
    cout<<str[i]<<" ";
  cout<<endl;
//cout<<str[0];说明str[0]是空格
  return 0;
}

#include<iostream>
#include<string>
using namespace std;
int main()
{
  int i,j;
  string str[6]={"we","go","to","school","today"};//注
  string t;
  for(i=0;i<5;i++)
    for(j=0;j<4-i;j++)//这里不能到4，否则
    {
     if(str[j]>str[j+1])//j+1为5，正好是空格
     {
      t=str[j];
      str[j]=str[j+1];
      str[j+1]=t;
     }
    }

  for(i=0;i<5;i++)
    cout<<str[i]<<" ";
  cout<<endl;
//cout<<str[0];说明str[0]是空格
  return 0;
}

修改之后代码

数组是从0开始的。

好复杂的感觉

不是只有5个字符串吗，为什么要定义str[6]，还有str[0]为什么是空格？

#include<iostream>
#include<string>
using namespace std;
int main()
{
  int i,j;
  string str[5]={"we","go","to","school","today"};//×￠
  string t;
  for(i=0;i<4;i++)
    for(j=0;j<4-i;j++)
    {
     if(str[j]>str[j+1])
     {
      t=str[j];
      str[j]=str[j+1];
      str[j+1]=t;
     }
    }

  for(i=0;i<5;i++)
    cout<<str[i]<<" ";
  cout<<endl;
  return 0;
}

版主 字符串还能这样比较大小啊 长见识了