尝试/除非程序块未运行

Question

try块根本没有运行...有人可以找出原因吗？

case = open("phone.txt", "r+") 
phone = ["What brand of phone do you have?", "What model?", "What version?", "How much memory?", "What seems to be the problem?"] 
laptop = ["What brand of laptop do you have?", "What model?", "How much RAM?", "How much storage?", "What seems to be the problem?"] 
tablet = ["What brand of tablet do you have?", "What model?", "What version?", "How much memory?", "What seems to be the probem?"] 
specs = [] 
keyword = ["crack", "cracked", "wet", "water", "sound", "charge", "charger", "smashed", "slow", "boot", "startup", "blue", "responding", "", "", ""] 
possibeSolutions = ["System: 'You should take your phone to get the screen replaced.'", "System: 'You should take your phone to get the screen replaced.'", "System: 'You should dry your device in rice.'", "", "", "", "", "", "", "", "", "", "", "", "", ""] 
count = 0 
device = input("System: 'What type of device do you have?'\nYou: ") 
specs.append(device) 

def problems(device, brand, model, version, memory, problem): 

    solution = False 
    specs = [brand, model, version, memory, problem] 
    problem2 = problem.split(" ") 
    for i in problem2: 
     for n in keyword: 
      if i.lower() == n.lower(): 
       print(possibeSolutions[keyword.index(n)]) 
       solution = True 
    if solution == False: 
     try: 
      case2 = case.readlines() 
      fileLen = len(case2) 
      caseNum = case2[fileLen - 2] 
      caseNum = int(caseNum) + 1 
      print("...") 
     except ValueError: 
      caseNum = 1 
      print("...") 
     finally: 
      print("...") 
      case.write(str(caseNum) + "\n(" + str(specs) + ")\n") 
      print("System: 'Your problem has been added the the database and one of our engineers will check it out later.'") 

if "phone" in device.lower(): 
    for i in phone: 
     print("System: '" + i + "'") 
     answer = input("You: ") 
     specs.append(answer) 
elif "laptop" in device.lower(): 
    for i in laptop: 
     print("System: '" + i + "'") 
     answer = input("You: ") 
     specs.append(answer) 
elif "tablet" in device.lower(): 
    for i in tablet: 
     print("System: '" + i + "'") 
     answer = input("You: ") 
     specs.append(answer) 
else: 
    print("System: 'Sorry, this troubleshooting program does not support that device.'") 

try:  
    problems(specs[0], specs[1], specs[2], specs[3], specs[4], specs[5]) 
except IndexError: 
    pass 

print("System: 'The program has ended.'") 

case.close() 

我曾尝试在try块中加入一些印花和不打印出来。只有finally块正在运行，这显然会抛出一个错误，因为caseNum没有被定义为它在try/except块中定义的。 （这是def的尝试，这里是问题）。

Answer 1

不确定，但我认为“**如果”不是有效的，并且在它后面的所有内容都是混淆的。