隐式铸造一个浮动常数

#include <stdio.h>

int main(void)
{
    short s;
    int i = 65696;
    float f = 65696.0F;

    printf("sizeof(short) = %lun",sizeof(short));

    s = i;
    printf("s = %hdn",s);
    s = f;
    printf("s = %hdn",s);

    s = 65696;
    printf("s = %hdn",s);
    s = 65696.0F;
    printf("s = %hdn",s);

    return 0;
}

它输出为：

sizeof(short) = 2
s = 160
s = 160
s = 160
s = 32767

最后一行为什么是32767而不是160？说f = 65696.0F有什么区别？ s = f; s = 65696.0F; ？