[英]pause(not stop) a for loop in python
I have a for loop that read the contents from a file line by line, I need to pause the loop and if button clicked resuming the loop from where it paused.我有一个 for 循环,它逐行从文件中读取内容,我需要暂停循环,如果单击按钮,则从暂停的地方恢复循环。 I searched the internet but I just find a stop button functionality using break for example but I don't want to break from for loop I want to pause/resuming the loop.
我搜索了互联网,但我只是找到了一个使用 break 的停止按钮功能,但我不想从 for 循环中中断我想暂停/恢复循环。 thank you in advance for your help here my loop with stop and break, I need to add pause button functionality to it.
提前感谢您在这里的帮助,我的循环停止和中断,我需要为其添加暂停按钮功能。
running[0] = True
def csv_exe():
with open(file_path.get(), 'r') as file:
data = csv.reader(file, delimiter=',')
for line in data:
lines= line
if running[0]== False:
break
else:
sendmMsg.set(lines)
print(lines)
time.sleep(0.5)
You can use "yield".您可以使用“产量”。 The pseudo code would be like below.
伪代码如下所示。
def csv_exe():
with open(file_path.get(), 'r') as file:
data = csv.reader(file, delimiter=',')
for line in data:
lines= line
if running[0]== False:
yield
else:
sendmMsg.set(lines)
print(lines)
time.sleep(0.5)
generator=csv_exe()
while True:
try:
# if specific button is pressed:
next(generator)
except StopIteration:
break
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