串比较

问题：一定要记得保存指针的地址。

代码：

?

#include <iostream>

using namespace std;

int main()

{

    char s1[]="helloworld";

    char s2[]="hellochina";

    char *c1=s1;

    char *c2=s2;

    char *c3;

    int length1=0,length2=0;

    while(s1[length1]!='\0')

            length1++;

    while(c2[length2]!='\0')

            length2++;

    if(length1<length2)

    {

        cout<<"串s1小于串s2"<<endl;

    }

    else if(length1>length2)

    {

        cout<<"串s1大于串s2"<<endl;

    }

    else

    {

        for(int i=0;i<length1;i++)

        {

            if(c1[i]!=c2[i])

            {

                if(c1[i]>c2[i])

                    cout<<"串s1大于串s2"<<endl;

                else

                    cout<<"串s1小于串s2"<<endl;

                break;

            }

            else

                continue;

        }

    }

    return 0;

}

运行结果：