用Regex或Gsub替换字符串中的一定数量的字符

Question

无法找到正确的答案，所以我想更改问题。

我有一个JSON代码，如下所示：

[
  {
    "section_id": "58ef93aaa310c97c0c16bcd2",
    "name": "Name1",
    "slug": "slug1"
  },
  {
    "section_id": "58ef93aaa310c97c0c16bcd3",
    "name": "Name2",
    "slug": "slug2"
  },
  {
    "section_id": "58ef93aaa310c97c0c16bcd4",
    "name": "Name3",
    "slug": "slug3",
    "categories": [
      {
        "section_id": "58ef93aaa310c97c0c16bcd5",
        "name": "Name31",
        "slug": "slug31"
      },
      {
        "section_id": "58ef93aaa310c97c0c16bcd6",
        "name": "Name32",
        "slug": "slug32",
        "categories": [
          {
            "section_id": "58ef93aaa310c97c0c16bcd7",
            "name": "Name321",
            "slug": "slug321"
          },
          {
            "section_id": "58ef93aaa310c97c0c16bcd8",
            "name": "Name322",
            "slug": "slug322"
          },
          {
            "section_id": "58ef93aaa310c97c0c16bcd9",
            "name": "Name323",
            "slug": "slug323"
          }
        ]
      }
    ]
  }
] 

我想改变＆＃34; section_id＆＃34;的每一次出现。在它之后有一定数量的字符，使它看起来像这样：

{
    "section_id": { "$oid" : "58ef93aaa310c97c0c16bcd2" },
    "name": "Name1",
    "slug": "slug1"
  }

你知道如何用正则表达式或其他方式改变它吗？

Answer 1

我假设你在R字符串变量中有JSON。此解决方案查找section_id键并将所有内容更改为下一个逗号。

var user = db.Users.Single(x => x.Nom == formUser.Nom && x.prenom == formuser.prenom);
db.Users.Remove(user);
db.SaveChanges();