1,双击事件:给table添加自定义事件row-dblclick,包含三个入参row, event, column
2,复制想要内容到粘贴板
handleTableRow(row, event, column){
let oInput = document.createElement('input');
oInput.value = decodeURIComponent(row.msg)
document.body.appendChild(oInput)
oInput.select()
document.execCommand('Copy')
this.$message.success('复制成功!')
oInput.remove()
}