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。

是的，这是有区别的。Continue强制循环在下一次迭代时开始，而pass意味着“这里没有代码要执行”，并将继续遍历循环体的剩余部分。

运行这些，看看有什么不同:

for element in some_list:
    if not element:
        pass
    print(1) # will print after pass

for element in some_list:
   if not element:
       continue
   print(1) # will not print after continue

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。

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。

是的，他们做的事情完全不同。Pass只是什么都不做，而continue则继续进行下一次循环迭代。在您的示例中，如果在if之后添加另一条语句，区别就会很明显:在执行pass之后，将执行这条进一步的语句。在继续之后，它就不会了。

>>> a = [0, 1, 2]
>>> for element in a:
...     if not element:
...         pass
...     print(element)
... 
0
1
2
>>> for element in a:
...     if not element:
...         continue
...     print(element)
... 
1
2

Pass只是继续循环或条件。它什么都不做。不过，Continue用于跳过当前迭代，并进入下一个迭代。

你可能会问，如果不需要，为什么要使用pass呢?考虑以下情况:

text = "I am a coder."

if text == "I am not a coder.":
    print("Programming is interesting! You should try it out!")
elif text == "I am a coder.":
    pass

Pass只是一个语法占位符，用来填充一些空间。如果在检查出特定条件时不想做任何事情，可以使用pass作为占位符。在Python中不能只编写空的条件、循环或函数。