【c语言内功】浮点数在内存中的储存

//浮点数在内存中的储存
#include

int main()
{
	int n = 9;
	//00000000 00000000 00000000 00001001
	float* pFloat = (float*)&n;
	printf("n的值为：%dn", n);//9
	printf("*pFloat的值为：%fn", *pFloat); //0.000000
	//从int中取出数字按照float的理解 0 00000000 00000000000000000001001
	//                            S    E           M           ->0
	*pFloat = 9.0;
	//1001.0
	//0 10000010 00100000000000000000000
	printf("num的值为：%dn", n); //1091567616
	//float->signed int
	printf("*pFloat的值为：%fn", *pFloat);// 9.000000
	return 0;
}