<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[厉羽宸的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/u014268348</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; u014268348]]></copyright><item><title><![CDATA[Shell 中的引用传递]]></title><link>https://blog.youkuaiyun.com/u014268348/article/details/81567349</link><guid>https://blog.youkuaiyun.com/u014268348/article/details/81567349</guid><author>u014268348</author><pubDate>Fri, 10 Aug 2018 17:41:20 +0800</pubDate><description><![CDATA[

在交换变量问题中，我们都知道值参数传递不能实现交换


void swap1(int a,int b)//值传递 ❌
{
    int temp;
    temp = a;
    a = b;
    b = temp;
}


解决方案是使用引用传递或指针传递


void swap2(int &amp;amp;a,int &amp;amp;b)//引用传递 
{
    int temp;
    ...]]></description><category></category></item></channel></rss>