What is the result？（）
- A、 The program runs and prints “0”
- B、 The program runs and prints “1”
- C、 The program runs but aborts with an exception.
- D、 An error “possible undefined variable” at line 4 causes compilation to fail.
- E、 An error “possible undefined variable” at line 9 cause compilation to fail.
正确答案:B
答案解析:有
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