最赞回答 / 瓦洛佳YUP
function mytype(val){ if(typeof val === "string"){ console.log('字符串'); }else if(typeof val === "number"){ console.log("数字"); }}mytype("");
2021-11-01
最赞回答 / qq_慕设计8188320
<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title></title> <script type="text/javascript"> function openwindow(){ var URL = prompt("请输入你的网址或选择默认网址", 'https://www.imoo...
2021-09-16