指定精确度(*号的使用)

*号的使用

#include <stdio.h>

int main(void)
{
    unsigned width, precision;
    float height;
    printf("Please enter you height(enter a tag before):\n");
    scanf("%*s %f", &height);
    printf("Please enter width and precision:\n");
    scanf("%d %d", &width, &precision);
    printf("your weight: --%*.*f--\n", width, precision, height);
}