10.4.对控制流的处理

\(11.4.\)Handling Flow of Control

• The not operation will turn the expression into a boolean value, thus make out code simpler and tighter.
• The compiler generates these labels automatically.

  In a program, we may have multiple if and whilestatements, to deal we this, we only have to assure that the compiler generates unique labels.

  Also the if and while statements may be nested. That is , the compiler employs a highly recursive compilation.