字符串匹配

 

代码：

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#include <iostream>

 

using namespace std;

 

int main()

{

    char *s="helolophp";

    char *s1="lop";

    char *c=s1;

    int len=0;

 

    while(c[len]!='\0')

    {

        len++;

    }

    int i=0,j=0;

    for(;s[i]!='\0';i++)

    {

       if(s1[j]==s[i])

       {    

           j++;

           if(j==len)

           {

               cout<<"匹配成功的起始位置是:"<<(i-j+2)<<endl;

               break;

           }

           continue;

       }

       else

       {

          i=i-j+1;

                  j=0;  

       }

    }

    if(s[i]=='\0')

    cout<<"匹配不成功。"<<endl;

    return 0;

}

运行结果：