swift 逃逸闭包和非逃逸闭包的区别

class NetworkManger {
    
    func getUserInfo(phone: String?, success:@escaping (() -> Void), failure: ((_ errorMessage: String) -> Void)) {
        print("函数开始执行")
        guard let _ = phone else {
            print("执行了failure闭包")
            failure("电话号码不能为空")
            return
        }
        //用来模拟网络请求
        let dataTask = URLSession.shared.dataTask(with: URL.init(string: "www.baidu.com")!) { (data, responmse, nil) in
            print("执行了success闭包")
            success()
        }
        dataTask.resume()
        print("函数执行结束")
    }
}

let netManger = NetworkManger()
netManger.getUserInfo(phone: "123456", success: {
    print("刷新你的界面")
}) { (errorMessage) in
    print(errorMessage)
}