可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
I'm having a hard time getting Google Charts to understand the datetime format. I used an example [1] where the datetime format is set to a simple month day and year, but I changed it to take an input of type datetime. An example is available the following page:
http://www.sccs.swarthmore.edu/users/09/leo/cgi-bin/viewer.php
The start of the code is as follows:
data.addColumn('datetime', 'Date'); data.addColumn('number', 'Active or not'); data.addRows(1768); data.setValue(0, 0, new Date(1306192258)); data.setValue(0, 1, 1);
Why will Google change that Date format to Jan 15, 1970? (Start of Epoch time?)
Thanks!
[1] http://www.beakkon.com/geek/how-to/create-interactive-charts-using-google-charts-api
回答1:
Try this:
data.addColumn('datetime', 'Date'); data.addColumn('number', 'Active or not'); data.addRows(1768); var d = new Date(); d.setTime(1306192258*1000); data.setValue(0, 0, d); data.setValue(0, 1, 1);
回答2:
Some more info on the Javascript Date function can be found w3schools.com website I found - new Date("July 21, 2011 02:00:00") to be a good compromise for what I wanted to do.
Snippet of my code
data.addRows([ [new Date("July 21, 2011 00:00:00"), 0.319636363636 ], [new Date("July 21, 2011 07:00:00"), 0.319636363636 ], [new Date("July 21, 2011 22:00:00"), 0.319636363636 ], [new Date("July 21, 2011 23:00:00"), 0.319636363636 ], [new Date("July 22, 2011 09:00:00"), 0.319636363636 ], [new Date("July 22, 2011 10:00:00"), 0.319636363636 ] ]);
