ObservableObjects

ObservableObjects 在class 中使用

多个 views (称为 observing views)可以 observe 这个 object

如果 ObservableObjects 中的值变化,会通知 observing views 自动更新

2020 - 06 - 30

Everyone’s 2nd chess book 学习笔记

Dan Heisman

The 11 Most Common Mistakes of Players Rated 800-1400

1 Missing a simple tactic

2 Not looking at what your oppo-

nent is threatening

3 Not getting all pieces into play 4 Not knowing basic opening

traps

5 Phantom fears

6 Overly wo......

2020 - 06 - 28

What’s new in Swift

Xcode 12 include Swift 5.3 Preview

编译后软件包变小

性能提升

代码格式化更合理

2020 - 06 - 24