visual studio 2022 C语言 用scanf_s() 获取浮点数时输入i会被吞掉一个

Question

正在学习C语言，用的IDE是visual studio 2022
头文件里的定义还看不懂，所以来询问
用scanf_s()获取浮点数时输入i会被吞掉一个
但获取整数不会吞i
详情见下图

获取浮点数

#include <stdio.h>
float getnumber(void) {
    float number = 0.0;
    char ch;
    while (scanf_s("%f", &number) != 1) {
        while ((ch = getchar()) != '\n') {
            putchar(ch);
        }
        printf(" is not a number.\n");
        printf("Please enter a number, such as 2.5, -1.78E8, or 3: ");
    }
    return number;
}
int main(void) {
    float num;
    num = getnumber();
    printf("%g\n", num);
    return 0;
}

获取整数

#include <stdio.h>
int getnumber(void) {
    int number = 0.0;
    char ch;
    while (scanf_s("%d", &number) != 1) {
        while ((ch = getchar()) != '\n') {
            putchar(ch);
        }
        printf(" is not a number.\n");
        printf("Please enter a number, such as 2.5, -1.78E8, or 3: ");
    }
    return number;
}
int main(void) {
    int num;
    num = getnumber();
    printf("%d\n", num);
    return 0;
}

搜了一下没搜到，想问一下为什么和可以解决吗
这是特性还是bug呢？
会不会和i是虚数单位有关？

Answer 1

软件原因
clion不会吞

vs会