移动端复制当前页面链接（URL）分享

注释：在移动端想做一个复制当前URL类似于分享的功能

示例：

<span class="share_btn"><img src="../resource/images/share/13.png"></span>

    <!-- 分享 -->
    <div class="share_mask"></div>
    <div class="share_box">
        <div class="share_list">
            <ul>
                <li style="display: none;">
                    <img src="../resource/images/share/share_wx.png">
                    <p>微信好友</p>
                </li>
                <li style="display: none;">
                    <img src="../resource/images/share/share_wxq.png">
                    <p>微信朋友圈</p>
                </li>
                <li class="copy_link">
                    <img src="../resource/images/share/copy_link.png">
                    <p>复制链接</p>
                </li>
            </ul>
        </div>
        <div class="cancel_share">取消</div>
    </div>

<script>
/// 分享 lwd
$(".rtn_image").click(function () {
    if ($(".rtn_list").css("display") == "none") {
        $(".rtn_list").show();
    } else {
        $(".rtn_list").hide();
    }
});

// 分享 lwd
$(".share_btn").click(function(){
    $(".share_mask").fadeIn();
    $(".share_box").fadeIn();
});
// 取消分享
$(".cancel_share").click(function(){
    $(".share_mask").fadeOut();
    $(".share_box").fadeOut();
});
$(".share_mask").click(function(){
    $(".share_mask").fadeOut();
    $(".share_box").fadeOut();
});
$(".copy_link").click(function(){
    var url = window.location.href + "#share";
    var successful;
    if (navigator.userAgent.match(/(iPhone|iPod|iPad|iOS)/i)) { //ios
        var copyDOM = document.createElement('div');  //要复制文字的节点
        copyDOM.innerHTML = url;
        document.body.appendChild(copyDOM);
        var range = document.createRange();
        // 选中需要复制的节点
        range.selectNode(copyDOM);
        // 执行选中元素
        window.getSelection().addRange(range);
        // 执行 copy 操作
        successful = document.execCommand('copy');
        // 移除选中的元素
        window.getSelection().removeAllRanges();
        $(copyDOM).hide()
    }else{
        var oInput = document.createElement('input')
        oInput.value = url;
        document.body.appendChild(oInput)
        oInput.select() // 选择对象
        successful = document.execCommand('Copy') // 执行浏览器复制命令
        oInput.className = 'oInput'
        oInput.style.display = 'none'
        oInput.remove()
    }
    if(successful){
        // layer.msg("复制成功")
        layer.msg("复制成功",{time:2000},function(){
            $(".share_mask").fadeOut();
            $(".share_box").fadeOut();
        });
    }else{
        layer.msg("复制失败",{time:2000},function(){
            $(".share_mask").fadeOut();
            $(".share_box").fadeOut();
        });
    }
});
</script>
<style>
.share_btn {
    /* display: block; */
    overflow: hidden;
    position: absolute;
    top: .1rem;
    line-height: 0.7rem;
    right: .2rem;
    width: 0.36rem;
    color: #333;
    font-size: .28rem;
}
.share_btn>img{
    width: 100%;
}
/* 分享 */
.share_mask{
    position: fixed;
    width: 100%;
    height:100%;
    background: rgba(0,0,0,0.5);
    left:0;
    top:0;
    z-index:110;
    display: none;
}
.share_box{
    position: fixed;
    bottom: 0;
    width: 100%;
    height:2.7rem;
    left: 0;
    background-color: #f8f8f8;
    z-index:111;
    display: none;
}
.share_box .share_list{
    height:1.9rem;
}
.share_box .share_list ul{
    display: flex;
    justify-content: space-around;
}
.share_box .share_list ul li{
    padding-top:0.22rem;
    width: 33%;
}
.share_box .share_list ul li img{
    width: 1rem;
    height:1rem;
    display: block;
    margin:0 auto;
}
.share_box .share_list ul li p{
    font-size:0.22rem;
    color: #333;
    line-height: 0.56rem;
    text-align: center;
}
.cancel_share{
    height:0.8rem;
    line-height: 0.8rem;
    font-size:0.28rem;
    text-align: center;
    color: #333;
    background-color: #fff;
}
.layui-layer-dialog .layui-layer-content {
    position: relative;
    padding: 20px;
    line-height: 24px;
    word-break: break-all;
    overflow: hidden;
    font-size: 14px;
    overflow-x: hidden;
    overflow-y: auto;
    color: #ffffff;
}
</style>