一、場景
請你寫出linq對表格排序，CODE=3排前面，其余按照CODE降序排序，CODE一樣再按照字母升序排序文章來源：http://www.zghlxwxcb.cn/news/detail-801759.html
| ID | CODE | VALUE |
| A0001 | 1 | A |
| A0002 | 1 | B |
| A0003 | 1 | C |
| A0004 | 2 | D |
| A0005 | 2 | E |
| A0006 | 2 | F |
| A0007 | 3 | G |
| A0008 | 3 | H |
| A0009 | 3 | I |
| A0010 | 4 | J |
二、代碼
using System;
using System.Collections.Generic;
using System.Linq;
class SortingDemo
{
static void Main()
{
// 創(chuàng)建數(shù)據(jù)源
var data = new[]
{
new { ID = "A0001", CODE = 1, VALUE = "A" },
new { ID = "A0002", CODE = 1, VALUE = "B" },
new { ID = "A0003", CODE = 1, VALUE = "C" },
new { ID = "A0004", CODE = 2, VALUE = "D" },
new { ID = "A0005", CODE = 2, VALUE = "E" },
new { ID = "A0006", CODE = 2, VALUE = "F" },
new { ID = "A0007", CODE = 3, VALUE = "G" },
new { ID = "A0008", CODE = 3, VALUE = "H" },
new { ID = "A0009", CODE = 3, VALUE = "I" },
new { ID = "A0010", CODE = 4, VALUE = "J" }
};
// 使用LINQ進(jìn)行排序
var sortedData = data
.OrderByDescending(item => item.CODE == 3)
.ThenByDescending(item => item.CODE)
.ThenBy(item => item.VALUE)
.ToList();
// 輸出排序結(jié)果
foreach (var item in sortedData)
{
Console.WriteLine($"ID: {item.ID}, CODE: {item.CODE}, VALUE: {item.VALUE}");
}
}
}
三、結(jié)果
ID: A0007, CODE: 3, VALUE: G
ID: A0008, CODE: 3, VALUE: H
ID: A0009, CODE: 3, VALUE: I
ID: A0010, CODE: 4, VALUE: J
ID: A0004, CODE: 2, VALUE: D
ID: A0005, CODE: 2, VALUE: E
ID: A0006, CODE: 2, VALUE: F
ID: A0001, CODE: 1, VALUE: A
ID: A0002, CODE: 1, VALUE: B
ID: A0003, CODE: 1, VALUE: C四、思考
若再加大難度，ID=A0005的排第一，然后CODE=3排前面，其余按照CODE降序排序，再按照字母升序排序，如何寫呢？文章來源地址http://www.zghlxwxcb.cn/news/detail-801759.html
var sortedData = data.OrderByDescending(item=>item.ID=="A0005")
.ThenByDescending(item => item.CODE == 3)
.ThenByDescending(item => item.CODE)
.ThenBy(item => item.VALUE)
.ToList();到了這里，關(guān)于C#基礎(chǔ)：利用LINQ進(jìn)行復(fù)雜排序的文章就介紹完了。如果您還想了解更多內(nèi)容，請?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
