For回圈每月預算程式創建錯誤

我正在運行這個回圈代碼并且它正在創建一個錯誤，我找不到它的問題

print("""\
This program will prompt you to enter your budget, and amount spent
for a certain month and calculate if your were under or over budget.
You will have the option of choosing how many months you would like to
monitor.\n""")
AmountSpent = 0
Budget = 0
numMonths = int(input("Enter the number of months you would like to monitor:"))
while numMonths<0:
    print("\nNegative value detected!")
    numMonths = int(input("Enter the number of months you would like to monitor"))
for month in range(1, numMonths 1):
    print("\n=====================================")
    AmountBudgeted = float(input("Enter amount budgeted for month " month ":"))
    while AmountBudgeted<0:
         print("Negative value detected!")
         AmountBudgeted = float(input("Enter amount budgeted for month " month ":"))
    AmountSpent = float(input("Enter amount spent for month " month ":"))
    while AmountSpent<0:
         print("Negative value detected!")
         AmountSpent = float(input("Enter amount spent for month " month ":"))
    if AmountSpent <= AmountBudgeted:
        underBy = AmountBudgeted - AmountSpent
        print("Under budget by "   underBy)
    else:
        overBy = AmountSpent - AmountBudgeted
        print("Over budget by "   overBy)
    if month == "1":
       print(f'your budget is {AmountBudgeted}.')

關于我為什么會收到此錯誤的任何想法？我試圖自己弄清楚，但我不知道為什么它是錯誤的

uj5u.com熱心網友回復：

你的問題是for回圈變數month是一個整數，所以你不能在不先轉換它的情況下將它連接到一個字串。解決這個問題的最簡單方法是改用格式字串。

例如，這一行： AmountBudgeted = float(input("Enter amount budgeted for month " month ":"))

應改為： float(input(f"Enter amount budgeted for month {month}:"))

（如果你使用的是舊版本的 Python，你會改寫float(input("Enter amount budgeted for month {month}:".format(month=month)))。）

如果您很難改用串聯，則訣竅是month首先使用str(month).

希望有幫助！

uj5u.com熱心網友回復：

字串和數字資料型別存在問題。這是您的解決方案：

print("""\
This program will prompt you to enter your budget, and amount spent
for a certain month and calculate if your were under or over budget.
You will have the option of choosing how many months you would like to
monitor.\n""")
AmountSpent = 0
Budget = 0
numMonths = int(input("Enter the number of months you would like to monitor:"))
while numMonths<0:
    print("\nNegative value detected!")
    numMonths = int(input("Enter the number of months you would like to monitor"))
for month in range(1, numMonths 1):
    print("\n=====================================")
    AmountBudgeted = float(input("Enter amount budgeted for month " str(month) ":"))
    while AmountBudgeted<0:
         print("Negative value detected!")
         AmountBudgeted = float(input("Enter amount budgeted for month " str(month) ":"))
    AmountSpent = float(input("Enter amount spent for month " str(month) ":"))
    while AmountSpent<0:
         print("Negative value detected!")
         AmountSpent = float(input("Enter amount spent for month " str(month) ":"))
    if AmountSpent <= AmountBudgeted:
        underBy = AmountBudgeted - AmountSpent
        print("Under budget by "   str(underBy))
    else:
        overBy = AmountSpent - AmountBudgeted
        print("Over budget by "   str(overBy))
    if month == "1":
       print(f'your budget is {AmountBudgeted}.')

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