python: try/except/else and continue 语句

Question

为什么下面的 python 代码片段的输出NOT只是No exception:1，因为在第一次迭代期间没有引发异常。来自 python 文档(https://docs.python.org/2.7/tutorial/errors.html)。

The try ... except statement has an optional else clause, which, when present, must follow all except clauses. It is useful for code that must be executed if the try clause does not raise an exception.

$ cat hello.py
for x in range(1,10):
  try:
    if x == 1:
        continue
    x/0
  except Exception:
    print "Kaput:%s" %(x)
  else:
    print "No exception:%s" %(x)
    break

$ python hello.py
  Kaput:2
  Kaput:3
  Kaput:4
  Kaput:5
  Kaput:6
  Kaput:7
  Kaput:8
  Kaput:9

 $ python -V
 Python 2.7.8

Answer 1

教程提供了一个良好的开端，但不是语言引用。 Read the reference here.

特别注意:

The optional else clause is executed if and when control flows off the end of the try clause.

由脚注 2 阐明:

Currently, control “flows off the end” except in the case of an exception or the execution of a return, continue, or break statement.

因此，您对 continue 的使用已明确解决。