itemStyle.normal.label is deprecated, use label instead.

itemStyle.normal.label is deprecated, use label instead.
'normal’hierarchy in label has been removed since 4.0. All style properties are configured in label directly now.
错误写法：

itemStyle: {normal: {// color: '#00E0FF',  // 设置折线点颜色 label: {  //在折线拐点上显示数据},}},

正确写法：label移动到最外层和itemStyle同级

     label: {  //在折线拐点上显示数据},itemStyle: { },