sscanf、strsep

#include <stdio.h>
#include <string.h>

int main()
{
    char token[] ="abdzxbcdefgh";
    char str[]="3:2:09";
    int a1=0, a2=0, a3=0;
    int ret;

    printf("%s
",token);
    char *tokenremain = token;
    char *tok1 = strsep(&tokenremain,"cde");
    printf("tok1:%s,token:%s
",tok1,tokenremain);
    tok1 = strsep(&tokenremain,"cde");                                           
    printf("tok1:%s,token:%s
",tok1,tokenremain);
    printf("%s
", token );
    ret=sscanf( str, "%d:%d:%d", &a1, &a2, &a3 );
    printf( "ret=%d,%d:%d:%d
", ret, a1, a2, a3 );

    return 0;
}

输出：

abdzxbcdefgh
tok1:ab,token:zxbcdefgh
tok1:zxb,token:defgh
ab
ret=3,3:2:9

注意问题：

1、sscanf返回值，是识别token的个数；

2、strsep会修改被扫描的字符串，会在扫描到的地方设置为''