#include <bits/stdc++.h>using namespace std;int main() {double x = 2.5;char* p = (char*)(&x);for (int i = sizeof(double) - 1; i >= 0; --i
#include<iostream>#include<bitset>using namespace std;//必须得加上 int main(){int a=1000;cout<<"默认下"<<a<<endl;cout&