如何将十进制转换成二进制？ [英] How would I convert decimal into binary?

问题描述

我真正知道的是PHP和我使用了 decbin 功能等，这是相当容易的事。在这个C ++程序我想要做同样的事情，只是一个简单的数字或字符串我会怎么做呢？

All I really know is PHP and I used the decbin function etc, It was fairly easy to do. In this C++ program I want to do the same thing, just a simple number or string how would I do this?

推荐答案

一个简单的功能，可以像这样定义：

A simple function could be defined such as this:

void binary(int decimal) {
   int remainder;

   if(decimal <= 1) {
       std::cout << decimal;
       return;
   }
   remainder = decimal % 2;
   binary(decimal >> 1);    
   std::cout << remainder;
}

虽然有在网络上许多其他资源上如何做到这一点..

Although there are many other resources on the web on how to do this..

有关它的效率在这里值得注意的一个问题，因为你可能要远远不止这些：
<一href=\"http://stackoverflow.com/questions/819487/efficiently-convert-between-hex-binary-and-decimal-in-c-c\">http://stackoverflow.com/questions/819487/efficiently-convert-between-hex-binary-and-decimal-in-c-c

A noteworthy question for efficiency of it here, as you may want more than just that: http://stackoverflow.com/questions/819487/efficiently-convert-between-hex-binary-and-decimal-in-c-c

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