Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
内置数据虽然起到了很好的演示作用,但是会干扰实际使用。有没有什么快捷办法清空内置数据?一条条删不仅慢,而且很多依赖关系搞不掉。