Linux：06---線上求助系統：man、info、--help命令
阿新 • • 發佈：2019-01-08
這裡跟一般的信源編碼略有一些區別，比如程式還需要有一定的可讀性，因而需要引入額外的冗餘，要不然就會像brainfuck或者花式perl一樣沒法看了。這件事可以理解為兩種效果的混合：第一，我們希望程式中不僅編碼進執行的資訊，還編進一部分設計思想，這可以看作是程式設計的額外需求；第二，我們需要程式有一定的“抗誤碼”能力，因為人讀程式碼的時候有時候會看走眼，需要額外的保障，比如縮排這樣的額外資訊，這可以看作是一種通道編碼。
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