简单作框图程序，可以作正方形，圆形，长方形，线等，也可设置每个 对像的长宽等属性。程序演示了动态创建例子的方法,有保存和打开功能。 -Diagram for a simple procedure, can be used for square, round, rectangle, line, etc. can also be set for each of the attributes such as the length and width. Procedures for the cr