C# 實現list=list.OrderBy(q=>q.字段名).ToList(); 按多個字段排序
//倒序 list.OrderByDescending(i => i.a).ThenByDescending(i => i.b); //順序 list.OrderBy(i => i.a).ThenBy(i => i.b); ...
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//倒序 list.OrderByDescending(i => i.a).ThenByDescending(i => i.b); //順序 list.OrderBy(i => i.a).ThenBy(i => i.b); ...
void Main() { var empList =new List<Employee> { new Employee {ID = 1, FName = "John", Age = 23, Sex = 'M'}, new Employee {ID ...
最近用java抓取數據的時候,遇到了需要對拿到的List集合按照多個字段進行排序。首先得讓排序的實體類實現Comparable類並且重寫它的compareTo方法,在compareTo中你可以自定義排序的規則。如果前者大於后者,則返回1,若果相等則返回0,若果前者小於后者 ...
剛開始這樣 改為 ...
List<ClassEntity> distinctClass = classEntities.stream().collect(Collectors.collectingAndThen(Collectors.toCollection(() -> new TreeSet< ...
List按某個字段排序 github_39325328 方式一: 需要jdk1.8 ...