1.打开eclipse→Windows→Preferences→Java→Editor→Content Assist
修改Auto Activation triggers for java的值为：.abcdef…z 点击apply按钮
2. 继续打开JavaScript→Editor→Content Assist
修改Auto Activation triggers for JavaScript的值为：zjs 点击apply按钮
3. 继续打开web→html Files→Editor→Content Assist
修改Prompt when these characters are inserted:的值为：zhtml 点击apply按钮
