EscapingTime Limit: 1000ms, Special Time Limit:2500ms, Memory Limit:65536KBTotal submit users: 13, Accepted users: 7Problem 11567 : No special judgementProblem description  One day, Large cruise ”Wu K

用户 func insert (_ region: @escaping Region) -> Region { return { point in !region(point) } } 当其中需要执行后才返回， 异步执行的，都需要添加escaping. 如方法1. func doWork(block:()->() ) { block() } 调用时： doWork{ print(“hell