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?
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
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
其他回答
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
是的,这是有区别的。Continue实际上跳过了当前循环迭代的其余部分(返回到开始)。Pass是一个空语句,不执行任何操作。
查看python文档
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。
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。