如何在python 3中从for inside for循环中增加迭代器? [英] how to increment the iterator from inside for loop in python 3?
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问题描述
for i in range (0, 81):
output = send command
while True:
last_byte = last_byte - offset
if last_byte > offset:
output = send command
i+
else:
output = send command
i+
break
我想在每次执行send命令时增加迭代器。现在它只在执行for循环时增加1。请告知
I want to increase the iterator every time the send command is executed. Right now it only increases by one when the for loop is executed. Please advise
for i in range(0,10):
print(i)
i +=2
print("increased i", i)
我运行此代码并生成从0到9.我原以为它会将迭代器增加2。
I ran this code and it produced out from 0 to 9. I was expecting it would increase the iterator by 2.
推荐答案
将迭代器的副本保存为命名对象。然后,如果您愿意,可以跳过。
Save a copy of the iterator as a named object. Then you can skip ahead if you want to.
>>> myiter = iter(range(0, 10))
>>> for i in myiter:
print(i)
next(myiter, None)
...
0
2
4
6
8
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