python:try/except/else和continue政治家

Question

为什么下面的python代码片段的输出不是只是没有异常：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

本教程提供了一个良好的开始，但不是语言参考。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.

脚注2澄清：

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

所以你对continue的使用是由它显式地解决的。