纯手工编写，都是基础代码，有基础的都能看懂，自己可以添加点形状，都是button的组合，竖形和田字形都图上的比土子好弄-Hand-written, are basic code, basic can understand, they can add a point shape, are a combination of button, the vertical zigzag shaped Wada are on the map Haonong than sub-soil

java 小程序 画图软件 有自己带的调色板和画笔功能 很强大-java small program to achieve a simple clock function but does not have a second hand