function copyTextToClipboard(text) {

        var textArea = document.createElement("textarea")

        textArea.style.position = 'fixed'

        textArea.style.top = 0

        textArea.style.left = 0

        textArea.style.width = '2em'

        textArea.style.height = '2em'

        textArea.style.padding = 0

        textArea.style.border = 'none'

        textArea.style.outline = 'none'

        textArea.style.boxShadow = 'none'

        textArea.style.background = 'transparent'

        textArea.value = text

        document.body.appendChild(textArea)

        textArea.select()

        try {

            var msg = document.execCommand('copy') ? '成功' : '失败';

            console.log('复制内容 ' + msg)

        } catch (err) {

            console.log('不能使用这种方法复制内容')

        }

        document.body.removeChild(textArea)

    }

$('.share a').on('click',function(e){

   var linkHref="http://"+document.domain+"/"+$(this).attr('href');

   copyTextToClipboard(linkHref);

   var tip = document.execCommand('copy') ? '成功' : '失败';

   layui.use( 'layer', function() {

      var layer = layui.layer;

      layer.msg('复制' + tip)

   });

   return false;

})