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#include <stdio.h>
#include <stdlib.h>
char *match(char *str,char const *want)
{
while(*want !='\0')
if(*++str != *want++)
return NULL;
return str;
}
int main()
{
char *a=NULL,*b="bianchenghaoxinku";
char const *c="hao";
a=match(b,c);
printf("b=%s\n",b);
return 0;
}