打开开发工具,在控制台输入下面的代码运行即可 在console中输入: var option = new Option("CHN+86","CHN+86");option.selected = true;document.getElementById('country').options.add(o Read More
posted @ 2023-07-08 16:38 古墩古墩 Views(6292) Comments(1) Diggs(0)