问题：在Python中跳过迭代
我有一个循环，但是有可能在循环内引发异常。这当然会停止我的程序。为了防止这种情况，我捕获并处理了异常。但是，即使发生异常，其余迭代也会运行。我的except:子句中是否有关键字可以跳过当前迭代的其余部分？
I have a loop going, but there is the possibility for exceptions to be raised inside the loop. This of course would stop my program all together. To prevent that I catch the exceptions and handle them. But then the rest of the iteration runs even though an exception occurred. Is there a keyword to use in my except: clause to just skip the rest of the current iteration?
回答 0
回答 1
for i in iterator:
try:
# Do something.
pass
except:
# Continue to next iteration.
continue
for i in iterator:
try:
# Do something.
pass
except:
# Continue to next iteration.
continue
回答 2
像这样吗
for i in xrange( someBigNumber ):
try:
doSomethingThatMightFail()
except SomeException, e:
continue
doSomethingWhenNothingFailed()
Something like this?
for i in xrange( someBigNumber ):
try:
doSomethingThatMightFail()
except SomeException, e:
continue
doSomethingWhenNothingFailed()
回答 3
继续示例：
number = 0
for number in range(10):
number = number + 1
if number == 5:
continue # continue here
print('Number is ' + str(number))
print('Out of loop')
输出：
Number is 1
Number is 2
Number is 3
Number is 4
Number is 6 # Note: 5 is skipped!!
Number is 7
Number is 8
Number is 9
Number is 10
Out of loop
Example for Continue:
number = 0
for number in range(10):
number = number + 1
if number == 5:
continue # continue here
print('Number is ' + str(number))
print('Out of loop')
Output:
Number is 1
Number is 2
Number is 3
Number is 4
Number is 6 # Note: 5 is skipped!!
Number is 7
Number is 8
Number is 9
Number is 10
Out of loop
回答 4
回答 5
对于此特定用例，使用try..except..else是最干净的解决方案，else如果未引发异常，则将执行该子句。
注意：else子句必须跟在所有except子句之后
for i in iterator:
try:
# Do something.
except:
# Handle exception
else:
# Continue doing something
For this specific use-case using try..except..else is the cleanest solution, the else clause will be executed if no exception was raised.
NOTE: The else clause must follow all except clauses
for i in iterator:
try:
# Do something.
except:
# Handle exception
else:
# Continue doing something
