//倒序 list.OrderByDescending(i => i.a).ThenByDescending(i => i.b); //顺序 list.OrderBy(i => i.a).ThenBy(i => i.b); ...
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//倒序 list.OrderByDescending(i => i.a).ThenByDescending(i => i.b); //顺序 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抓取数据的时候,遇到了需要对拿到的List集合按照多个字段进行排序。首先得让排序的实体类实现Comparable类并且重写它的compareTo方法,在compareTo中你可以自定义排序的规则。如果前者大于后者,则返回1,若果相等则返回0,若果前者小于后者 ...
刚开始这样 改为 ...
List<ClassEntity> distinctClass = classEntities.stream().collect(Collectors.collectingAndThen(Collectors.toCollection(() -> new TreeSet< ...
List按某个字段排序 github_39325328 方式一: 需要jdk1.8 ...