鼠标右键复制触发事件

 document.addEventListener("copy", function (e) {

            //取消默认事件，才能修改复制的值

            e.preventDefault();

            // if (window.getSelection(0).toString()) {

            //     alert("此文需要vip才能复制");

            // }

            // console.log(window.getSelection(0).toString());

            //复制的内容

            // let copyTxt = `${window

            //     .getSelection(0)

            //     .toString()}\n————————————————\n原文链接：${

            //     window.location.href

            // }`;

            // let copyTxt = "";

            let copyTxt = window.getSelection(0).toString();

            if (e.clipboardData) {

                e.clipboardData.setData("text/plain", copyTxt);

            } else if (window.clipboardData) {

                return window.clipboardData.setData("text", copyTxt);

            }

            console.log("复制成功");

        });