var data = [ [ "2017-01-04 13:11:00", 82.3 ], [ "2017-01-04 13:11:30", 81.2 ], [ "2017-01-04 13:12:00", 83 ], [ "2017-01-04 13:12:30", 84.1 ], [ "2017-01-04 13:13:00", 87 ], [ "2017-01-04 13:13:30", 85.2 ], [ "2017-01-04 13:14:00", 84.2 ], [ "2017-01-04 13:14:30", 79 ], [ "2017-01-04 13:15:00", 79.1 ], [ "2017-01-04 13:15:30", 82.6 ], [ "2017-01-04 13:16:00", 82.6 ], [ "2017-01-04 13:16:30", 83.6 ], [ "2017-01-04 13:17:00", 82.7 ], [ "2017-01-04 13:17:30", 85.3 ], [ "2017-01-04 13:18:00", 88.2 ], [ "2017-01-04 13:18:30", 83.4 ], [ "2017-01-04 13:19:00", 81.6 ], [ "2017-01-04 13:19:30", 82.6 ], [ "2017-01-04 13:20:00", 82.9 ] ]; option = { "title": { "text": "" }, "tooltip": { "trigger": "axis" }, "xAxis": [{ "type": "time", "splitLine": { "show": false } }], "yAxis": [{ "type": "value", "splitLine": { "show": false }, "max": "dataMax", "min": "dataMin" }], "visualMap": [{ "show": false, "pieces": [{ "lte": 80.7, "color": "red" }, { "gt": 80.7, "lte": 82.1, "color": "yellow" }], "outOfRange": { "color": "blue" }, "seriesIndex": 0 }], "series": [{ "type": "line", "name": "test", "symbolSize": 10, "silent": false, "clipOverflow": true, "lineStyle": { "normal": { "color":"blue",//去掉color就正常了 "width": 1 } }, "data": data }] }