小编Ash*_*ish的帖子

我想用图表中的虚线连接空值。下面是我的代码所在的 JS fiddle 的 url -

data:  [
        [Date.UTC(2016, 1, 1),null], 
        [Date.UTC(2016, 2, 1),null], 
        [Date.UTC(2016, 3, 1),500], 
        [Date.UTC(2016, 4, 1),600], 
        [Date.UTC(2016, 5, 1),null], 
        [Date.UTC(2016, 6, 1),700], 
        [Date.UTC(2016, 7, 1),null], 
        [Date.UTC(2016, 8, 1),null], 
        [Date.UTC(2016, 9, 1),null],
        [Date.UTC(2016, 10, 1),null],
        [Date.UTC(2016, 11, 1),null], 
        [Date.UTC(2017, 0, 1),500]
        ],

http://jsfiddle.net/Ashish_developer/ue0wb8w0/