重复for循环的迭代 [英] repeat an iteration of for loop

问题描述

 对于listOfIds中的eachId，如果由于某种原因，我想重复相同的迭代。 ：
 #assume here eachId conatins 10 
 response = makeRequest（eachId）#assume makeRequest函数请求到一个url使用这个ID 
 if response =='market is closed'：
 time.sleep（24 * 60 * 60）#sleep for a day 
  

现在当功能从睡眠后醒来一天后（市场（货币交易市场）是开放的）我想恢复我的for循环从 eachId = 10 不是 from eachId = 11 ，因为 eachId = 10 尚未作为<$ c处理$ c $>市场被关闭，任何帮助非常感谢。

：

 对于listOfIds中的eachId：
成功= False 
，但不成功：
响应= makeRequest（eachId）
如果响应==市场关闭：
 time.sleep（24 * 60 * 60）#sleep一天
其他：
成功=真
  

问题的标题就是线索。 重复是通过迭代实现的，在这种情况下，您可以简单地使用来嵌套。

if for some reason i want to repeat the same iteration how i can do it in python?

for eachId in listOfIds:
    #assume here that eachId conatins 10
    response = makeRequest(eachId) #assume that makeRequest function request to a url by using this id
    if response == 'market is closed':
       time.sleep(24*60*60) #sleep for one day

now when the function wake up from sleep after one day (market (currency trade market) is open) i want to resume my for loop from eachId = 10 not from eachId = 11, because eachId = 10 is not yet been processed as market was closed, any help is highly appreciated thanks.

解决方案

Do it like this:

for eachId in listOfIds:
    successful = False
    while not successful:        
        response = makeRequest(eachId)
        if response == 'market is closed':
            time.sleep(24*60*60) #sleep for one day
        else:
            successful = True

The title of your question is the clue. Repeating is achieved by iteration, and in this case you can do it simply with a nested while.

这篇关于重复for循环的迭代的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！