话不多说,直接上代码
#include<stdio.h>
int opt(char **p, char ch, char **res)
{
char *q = *p;
if ( q == NULL || *q == '\0')
{
return -1;
}
*res = q;
while( *q != ch && *q != '\0')
q++;
if(*q != '\0')
{
*q = '\0';
q++;
}
*p = q;
return 255;
}
int main()
{
char data[] = "hello world we are friend";
char *p = data;
char *str;
int n;
while((n = opt(&p, ' ',&str)) > 0)
{
printf("str = ");
printf("%s\n", str);
}
return 0;
}
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