Test
Tests for new website features
注释
This is a notation.例题
输入两个整数 ，输出它们的和。（）Code (1)
#include <bits/stdc++.h>using namespace std;int main(){ int a,b; cin>>a>>b; cout<<a+b<<'\n'; return 0;}
按键
Ctrl + C or ⌘ + C
脚注
实时编辑器
Live Editor
function Clock(props) { const [date, setDate] = useState(new Date()); useEffect(() => { const timerID = setInterval(() => tick(), 1000); return function cleanup() { clearInterval(timerID); }; }); function tick() { setDate(new Date()); } return ( <div> <h2>It is {date.toLocaleTimeString()}.</h2> </div> ); }
Result
Loading...
窗口
http://localhost:3000
This is a browser window.