摘要:
```js var chars = ['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F']; function generateMixed(n) { var res = ""; for(var i = 0; i < n ; 阅读全文
摘要:
```js document.getElementById('aaaa').addEventListener('paste', function (e) { var clipboardData = e.clipboardData; if (!(clipboardData && clipboardDa 阅读全文