C++实现十进制转二进制
#include<iostream>
#include<string>
#include<cmath>
#include<algorithm>
using namespace std;
int main()
{
int n;
while(cin>>n)
{
if(n==0)
{ cout<<" 0-->0\n";
continue;
}
string s="";
for(int a=n;a;a=a/2)
s=s+(a%2?'1':'0');//不断进行相除
std::reverse(s.begin(),s.end());
//倒置字符串
const char *sss=s.c_str();
cout.width(11);
cout<<n<<(n<0?"-->-":"-->")<<sss<<"\n";
}
}实现结果: