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我試圖創建一個程序,要求用戶輸入年份Haley的彗星最後一次出現,然後再添加75和76年,然後輸出結果。無法將int int更改爲str隱藏
lastsight = int(input("When was the last sighting? "))
firstsight = lastsight + 75
secondsight = lastsight + 76
print("The next sighting will be in", firstsight, "or", secondsight + ".")
但是,每當我運行它,我得到這個錯誤:
Traceback (most recent call last):
File "program.py", line 5, in <module>
print("The next sighting will be in", firstsight, "or", secondsight + ".")
TypeError: unsupported operand type(s) for +: 'int' and 'str'
我如何能解決這個問題的任何幫助,將不勝感激。