#include<stdio.h>
int main()
{
    int i=0,j=0;
    char sentence[100]=(" Created is a not big  ");
    char word[5]=("not");
     for    (i=0,j=0;i<=2;j++)
        {
        if((sentence[j]==word[i])&&j<100)
            {i++;}
        if(sentence[j]!=word[i]&&j<100)
             {i=0;}
        if(j>=100)
            break;
        }
           if(i==2)
        {printf(" find\n");}
           else
        {printf("not find\n");}

           printf("%d",i);

return 0;
}

#include<stdio.h>

 int main()

 {
     int i=0,j=0;
     char sentence[]=" Created is a not big  ";
     char word[]="not";
      for (i=0,j=0;i<=2;j++)
         {
         if((sentence[j]==word[i])&&j<100)
             i++;//你之前多判断if(sentence[j]!=word[i]&&j<100){i=0;}那样i又变成0了   去掉就行，还有i值为3  因为字符串后面的'\0'也相同
         if(j>=100)
             break;
         }
          if(i==3)
            printf(" find\n");
          else
            printf("not find\n");

            printf("%d",i);
             return 0;

 }

#include <stdio.h>
#include <string.h>
int main()
{
    char sentence[100] = "Created is a not big.";
    char word[5] = "not";
    if(strstr(sentence, word) == NULL )
            {
                printf("not find\n");
            }
    else
            {
                printf("find\n")
            }
    retrun 0;
}

[ 本帖最后由 liao06550107 于 2011-11-11 22:55 编辑 ]