Question

JSON字符串如下所示

{"data": [{

                "id": "BankDetails.FirstName",
                "value": "abcd",
                "type": "Text"

                },
                                {
                "id": "BankDetails.AccountNumber",
                "value": "12345678",
                "type": "Text"
                },
                {
                "id": "BankDetails.SortCode",
                "value": "123",
                "type": "Text"

                }]
                }

“ id”：“ BankDetails.AccountNumber”下的“ value”：“ 12345678”应替换为“ value”：“ ********”。我们如何为此编写正则表达式模式？因此确切的输出将是

{"data": [{

                "id": "BankDetails.FirstName",
                "value": "abcd",
                "type": "Text"

                },
                                {
                "id": "BankDetails.AccountNumber",
                "value": "********",
                "type": "Text"
                },
                {
                "id": "BankDetails.SortCode",
                "value": "123",
                "type": "Text"

                }]
                }

注意：BankDetails.AccountNumber并不总是第三个对象。

Answer 1

您可以使用可变宽度正向后视（C＃支持）来定位每个数字，并使用此正则表达式将其替换为*

(?<="id": "BankDetails.AccountNumber",\s*"value": "\d*)\d

Regex Demo

使用JSON字符串中的正则表达式根据名称屏蔽值

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