#include 
     
      int main(){   int a = 0;   a = judged("8613775669854");   printf("%d\n",a);}int judged(char *str){   if(strlen(str)!=13 )   //手机号不为13   {      return 1;   }   int i = 0;   for(i = 0; i<13; i++)     {       if(str[i]<'0'|| str[i]>'9')   //手机号中有非法字符       {           return 2;       }   }   if(str[0]!='8'|| str[1]!='6')   //不以86开头   {       return 3;   }   return 0;  //正常}