实现点击复制功能（css，html，js）

js代码区域

$(".copyNow").click(function(e){
    var text = $('#copycode');
    text.select();
    document.execCommand("Copy");
    if (text.val()) {
        webToast("邀请码复制成功",1000);
    } else {
        webToast("邀请码复制失败",'center',1000);
    }
});

html

<textarea id="copycode" class="main-code" readonly="readonly">FEDC43</textarea>

css

.main-code{
    resize: none;
    opacity:0;
    position: absolute;
}