echarts markPoint设置

Question

markPoint: {
                {
                    name: 'AAA',
                    x:"2020-8-6",
                    y:"1.071",
                }
            }

    {
                                    name: 'AAA',
                                    coord: ["2020-8-6", "1.071"],
                                }

两种写法都不行
如何设置 x数据为多少，y为多少的时候，这个点才出来

x轴是['2020-8-6','2020-8-7']
y轴是['1.2','1.39']