我正在编写一个必须接受用户输入的程序.
#note: Python 2.7 users should use `raw_input`, the equivalent of 3.X's `input`
age = int(input("Please enter your age: "))
if age >= 18:
print("You are able to vote in the United States!")
else:
print("You are not able to vote in the United States.")
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如果用户输入合理数据,这将按预期工作.
C:\Python\Projects> canyouvote.py
Please enter your age: 23
You are able to vote in the United States!
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但如果他们犯了错误,那就崩溃了:
C:\Python\Projects> canyouvote.py
Please enter your age: dickety six
Traceback (most recent call last):
File "canyouvote.py", line 1, in …Run Code Online (Sandbox Code Playgroud)