问题描述
所以我很困惑如何使用 try/except 函数将字符串转换为 int.有谁知道如何做到这一点的简单功能?我觉得我在字符串和整数上仍然有点朦胧.我非常有信心整数与数字有关.字符串...不是那么多.
So I'm pretty stumped on how to convert a string into an int using the try/except function. Does anyone know a simple function on how to do this? I feel like I'm still a little hazy on string and ints. I'm pretty confident that ints are related to numbers. Strings...not so much.
推荐答案
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.
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