小白在线问问题: scanf()函数的讨论（必答）#include <stdio.h>int main(){ int a; char b; float c; printf("Please input an integer:"); scanf("%d", &a); printf("integer:%d\n", a); printf("Please input a character:"); scanf("%c", &b); printf("character:%c\n", b); printf("Please input a float number:"); scanf("%f", &c); printf("float:%f\n", c); return 0;}问题：为什么运行这个程序得不到下面希望得到的运行结果？