sscanf特色用法

#include<stdio.h>  

#include<stdlib.h>  

#include<string.h>  

  

int main()

{  

    char str[100];  

    //用法一：取指定长度的字符串  

    sscanf("12345","%4s",str);  

    printf("用法一\nstr = %s\n",str);

     //用法二：格式化时间  

    int year,month,day,hour,minute,second;  

    sscanf("2013/02/13 14:55:34","%d/%d/%d %d:%d:%d",&year,&month,&day,&hour,&minute,&second);  

    printf("用法二\ntime = %d-%d-%d %d:%d:%d\n",year,month,day,hour,minute,second);  

  

    //用法三：读入字符串  

    sscanf("12345","%s",str);  

    printf("用法三\nstr = %s\n",str);  

  

    //用法四：%*d 和 %*s 加了星号 (*) 表示跳过此数据不读入. (也就是不把此数据读入参数中)  

    sscanf("12345acc","%*d%s",str);  

    printf("用法四\nstr = %s\n",str);  

  

    //用法五：取到指定字符为止的字符串。如在下例中，取遇到'+'为止字符串。  

    sscanf("12345+acc","%[^+]",str);  

    printf("用法五\nstr = %s\n",str);  

  

    //用法六：取到指定字符集为止的字符串。如在下例中，取遇到小写字母为止的字符串。  

    sscanf("12345+acc121","%[^a-z]",str);  

    printf("用法六\nstr = %s\n",str);  

    

    //综合测试

    char str1[100] ="123568qwerSDDAE";

    char lowercase[100];

    int num;

    sscanf(str1,"%dq%[a-z]", &num, lowercase);

    printf("The number is: %d.\n", num);

    printf("The lowercase is: %s.", lowercase);

    return 0;

}