1.NSArray排序
- Foundation自带类排序
NSArray *arr = @[@(1), @(9), @(5), @(2)]; NSArray *newArr = [arr sortedArrayUsingSelector:@selector(compare:)];
- 自定义类排序
NSArray *arr = @[p1, p2, p3, p4, p5]; // 默认按照升序排序 NSArray *newArr = [arr sortedArrayWithOptions:NSSortConcurrent usingComparator:^NSComparisonResult(Person *obj1, Person *obj2) { return obj1.age > obj2.age; }]; NSLog(@"%@", newArr);
时间: 2024-10-12 00:40:32