两个Python关键字continue和pass之间有什么显著的区别吗

for element in some_list:
    if not element:
        pass

and

for element in some_list:
    if not element:
        continue

我应该注意的?


当前回答

在这些例子中,没有。如果语句不是循环中的最后一个,那么它们的效果就非常不同。

其他回答

for循环中pass和continue的区别:

那么为什么要传入python呢?

如果你想创建一个空类,方法或块。

例子:

class MyException(Exception):
    pass


try:
   1/0
 except:
   pass

在上面的例子中没有'pass'将抛出IndentationError。

可以这样考虑:

通过:Python只处理缩进!不像其他语言,这里没有空花括号。

因此,如果你想在条件为真时什么都不做,除了pass没有其他选择。

Continue:这只在循环的情况下有用。在这种情况下,对于一定范围的值,您不想在特定传递的条件为真之后执行循环的剩余语句,那么您将必须使用continue。

Pass只是表示空什么都不做,如下所示:

for i in range(3):
    if i == 1:
        pass
    print(i)

输出:

0
1
2

Continue跳过当前循环进入下一个循环,如下所示:

for i in range(3):
    if i == 1:
        continue
    print(i)

输出:

0
2

Pass可以用于这样的场景:当你需要一些空函数、类或循环用于未来的实现,并且不需要执行任何代码时。 Continue用于以下情况:当在循环中满足某些条件时,需要跳过当前迭代并移动到下一个迭代。

x = [1,2,3,4] 
for i in x:
    if i==2:
         pass  #Pass actually does nothing. It continues to execute statements below it.
         print "This statement is from pass."
for i in x:
    if i==2:
         continue #Continue gets back to top of the loop.And statements below continue are executed.
         print "This statement is from continue."

输出为

>>> This statement is from pass.

同样,让我们运行相同的代码,只做了一些小更改。

x = [1,2,3,4]
for i in x:
    if i==2:
       pass  #Pass actually does nothing. It continues to execute statements below it.
    print "This statement is from pass."
for i in x:
    if i==2:
        continue #Continue gets back to top of the loop.And statements below continue are executed.
    print "This statement is from continue."

输出为-

>>> This statement is from pass.
This statement is from pass.
This statement is from pass.
This statement is from pass.
This statement is from continue.
This statement is from continue.
This statement is from continue.

Pass什么都不做。计算不受影响。但是继续返回到循环的顶部继续进行下一个计算。