如何让while循环和json响应工作?
第一次使用输入userid运行脚本时，如果用户在线，它将正常运行，直到打印(f'{username}， {userid}' + '仍然在线…')卡住。 当用户离线时，当userid == str(ps['user_id']):不再为真时，程序不会继续执行else操作。 它类似于str(ps['user_id']):在调用脚本时从不更新。
userid = input('Input userID: ')
response = requests.post('website.com/api', headers=headers, data=data)
json_data = json.dumps(response.json(), indent=2)
data = json.loads(json_data)
while True: # Main loop to run if a user is online
for ps in data['result']['page']['list']:
if userid == str(ps['user_id']): # If a user is online print details
username = ps['nick_name']
print('Username: ' + ps['nick_name'])
print('UserID: ' + str(ps['user_id']))
while userid == str(ps['user_id']): # Look if the user is still online (is in the json response)
print(f'{username}, {userid}' + ' is still online...')
time.sleep(3)
else: # If user go offline(is not in the json response), break and restart main loop(first while loop).
break
print('Waiting for ' + f'{userid}' + ' to get online...') # Message until user go online again (is found in the json response).
time.sleep(5)
问题来源StackOverflow 地址：/questions/59380219/how-do-i-get-this-while-loop-and-json-response-to-work
展开
收起
1
条回答
写回答
写回答
-
您不会在循环的任何地方更新数据，因此每次迭代都使用相同的陈旧数据。您可以在time.sleep(5)之前将生成数据的三行代码添加到循环中。这将给你更新的数据，并应解决你的问题。
userid = input('Input userID: ') response = requests.post('website.com/api', headers=headers, data=data) json_data = json.dumps(response.json(), indent=2) data = json.loads(json_data) userList = data['result']['page']['list'] isOnline = 0 while True: # Main loop to run if a user is online hasLoggedIn = 0 for user in userList: if str(user['user_id']) == userid and isOnline == 0: # If a user is online print details username = user['nick_name'] print('Username: ' + user['nick_name']) print('UserID: ' + str(user['user_id'])) print(f'{username}, {userid}' + ' is now online...') isOnline = 1 hasLoggedIn = 1 time.sleep(3) elif str(user['user_id']) == userid and isOnline == 1: print(f'{username}, {userid}' + ' is still online...') hasLoggedIn = 1 time.sleep(3) if hasLoggedIn == 0: print('Waiting for ' + f'{userid}' + ' to get online...') # Message until user go online again (is found in the json response). isOnline = 0 time.sleep(5) response = requests.post('website.com/api', headers=headers, data=data) json_data = json.dumps(response.json(), indent=2) data = json.loads(json_data) userList = data['result']['page']['list']2019-12-28 14:28:34赞同 展开评论 打赏
版权声明：本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容，填写侵权投诉表单进行举报，一经查实，本社区将立刻删除涉嫌侵权内容。
相关问答
