如何依次执行几种方法?

本文介绍了如何依次执行几种方法?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

强制按顺序执行方法的最佳方法是什么.我有三种方法，但我希望method1在method2之前完成，然后在method2完成时执行method3.

What is the best way to force methods to be executed in sequence. I have three methods, but I want method1 to complete before method2 and then when method2 is complete, to execute method3.

示例:

-(void)Method1 -(void)Method2 -(void)Method3 [self Method1]; [self Method2]; [self Method3];

如何强制Method2仅在Method1完成之前开始执行?

How do I force Method2 to begin execution only until Method1 has completed?

推荐答案

除非Method1中有多线程代码，否则Method2仅在Method1完成时才开始执行.您从哪里得到在Method1仍在运行时Method2将开始执行的印象?

Unless if you have multi-threading code in Method1, Method2 will only begin execution when Method1 is completed. From where did you get the impression that Method2 will start executing while Method1 is still running?