如何使用 for 循环提取 loan_price 低于 500 的贷款？答案

【问题标题】：How do I use a for loop to extract loans with loan_price under 500?如何使用 for 循环提取 loan_price 低于 500 的贷款？
【发布时间】：2021-06-20 19:52:07
【问题描述】：

#list of loans
loans = [
    {
        "loan_price": 700,
        "remaining_months": 9,
        "repayment_interval": "monthly",
        "future_value": 1000,
    },
    {
        "loan_price": 500,
        "remaining_months": 13,
        "repayment_interval": "bullet",
        "future_value": 1000,
    },
    {
        "loan_price": 200,
        "remaining_months": 16,
        "repayment_interval": "bullet",
        "future_value": 1000,
    },
    {
        "loan_price": 900,
        "remaining_months": 16,
        "repayment_interval": "bullet",
        "future_value": 1000,
    },
]


#empty dictionary
inexpensive_loans = []

loan_price = loans.get(loans[loan_price])

for loan_price in loans:
    if loans[loan_price] <= 500:
        inexpensive_loans.append(loans[loan_price])

print(inexpensive_loans)

我想提取loan_price低于500的贷款并放入inexpensive_loans。

【问题讨论】：

inexpensive_loans 应该包含什么？一份廉价贷款的清单，还是只是价格？

标签： python list for-loop if-statement

【解决方案1】：

loans 是一个list，它没有.get 方法。要获得所有价格

inexpensive_loans = [
    loan["loan_price"] for loan in loans if loan["loan_price"] <= 500
]

print(inexpensive_loans)

打印：

[500, 200]

【讨论】：

我认为 OP 希望附加整个字典。 inexpensive_loans = [ loan for loan in loans if loan["loan_price"] <= 500 ] 或者我看错了？