在使用 try/except 块时，具体说明您要捕获的异常非常重要.

It is important to be specific about what exception you're trying to catch when using a try/except block.

string = "abcd"
try:
    string_int = int(string)
    print(string_int)
except ValueError:
    # Handle the exception
    print('Please enter an integer')

Try/Excepts 非常强大，因为如果某事可能以多种不同的方式失败，您可以指定您希望程序在每种失败情况下如何反应.

Try/Excepts are powerful because if something can fail in a number of different ways, you can specify how you want the program to react in each fail case.