除了多个具有相同错误的异常不起作用(或者我错了):Python

Question

好吧，简单地说，我有这段代码，如果try块不起作用，它会在except块上运行(显然(，但是它只在除块之外的第一个块上运行，所以如下所示：

try:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".jpg"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
except ApiException as e0:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".png"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e0)
except ApiException as e1:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".jpeg"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e1)
except ApiException as e2:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".raw"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e2)
except ApiException as e3:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".psd"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e3)
except ApiException as e4:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".tiff"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e4)
except ApiException as e5:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".pdf"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e5)
except ApiException as e6:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".eps"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e6)
except ApiException as e7:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".bmp"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e7)
except ApiException as e8:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".ai"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e8)
except ApiException as e9:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".gif"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e9)
except ApiException as e10:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".pict"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e10)
except ApiException as e11:
cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+".svg"
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
print(e11)

如果第一个except不起作用，则不考虑其他except，但python既不出错，有什么帮助吗？

Answer 1

如果所有这些异常都是为了在单个try块(在try和第一个except之间(中捕获问题，那么您应该在每个块中捕获不同的异常。否则，只有第一个才重要。

另一方面，如果您试图在异常处理程序中捕获异常(在异常处理树中依此类推(，则需要嵌套它们，比如：

try:
doSomething()
except ApiException as e0:
try:
doSomethingElse()
except ApiException as e1:
try:
doAThirdThing()
except ApiException as e2:
andSoOn()

Answer 2

可以使用for-循环来简化代码。

list = ['jpg', 'png', ...]
for item in list:
try:

cover="https://t.nhentai.net/galleries/"+str(medid)+'/cover'+ '.' + item
nhlim=bot.send_photo(chatId,cover,caption='Nhentai id: <code>'+str(pornId)+'</code>nGenres: <code>'+str(genres)+'</code>nPages number: <code>'+str(jhen['result'][choosedNum]['num_pages'])+'</code>nEnglish title: <code>'+str(jhen['result'][choosedNum]['title']['english'])+'</code>nJapanese title: <code>'+str(jhen['result'][choosedNum]['title']['japanese'])+'</code>nPretty (Short) title: <code>'+str(jhen['result'][choosedNum]['title']['pretty'])+'</code>',parse_mode='HTML')
bot.register_next_step_handler(nhlim, nhen_sender)
break
except ApiException as err:

errorHandling
continue