需求：描述内容过长时将超出部分隐藏并显示省略号，鼠标悬停查看全部信息
columns = [
{ title: '描述', dataIndex: 'desc',key:"desc",
onCell: () => {
return {
style: {
maxWidth: 150,
overflow: 'hidden',
whiteSpace: 'nowrap',
textOverflow:'ellipsis',
cursor:'pointer'
}
}
},
render: (text) => <Tooltip placement="topLeft" title={text}>{text}</Tooltip>
},
