李俊霖 2021-01-25 12:01 择四季豆最下方的留种，四季豆腾上面老了，外壳变黄，摘下来晒干，取豆种用瓶子装好
The XAML {Binding} construct is very handy because it handles all of the PropertyChanged issues automatically.It is really impressive when you hand it a path to an object, through .NET data structures
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