对于用户自绘制功能的实现，更是需要花费大量时间和人力开发绘图控件，而且功能极为有限。

And the realization of user-mapping function also takes a lot of time and manpower to develop a drawing control, and the functions of it are extremely limited.

youdao

对于用户自绘制功能的实现，更是需要花费大量时间和人力开发绘图控件，而且功能极为有限。

And the realization of user-mapping function also takes a lot of time and manpower to develop a drawing control, and the functions of it are extremely limited.

youdao