字符输入空格键屏蔽问题

#include
int main()
{
int a;
char b;
float c;
printf(“please input a integer”);
scanf("%d",&a);
printf(“integer:%dn”,a);
printf(“please input a character”);
scanf(" %c",&b);//%c前面加空格可以忽略字符
printf(“character:%cn”,b);
printf(“please input a float number”);
scanf("%f",&c);
printf(“float:%fn”,c);
return 0;
}