“线程 1:信号 SIGTERM"是什么意思?在 iOS 中的 xcode 是什么意思? [英] What does "Thread 1: signal SIGTERM" mean in xcode with iOS?

问题描述

#import <UIKit/UIKit.h>

#import "XYZAppDelegate.h"

int main(int argc, char * argv[]) {
    @autoreleasepool {
            return UIApplicationMain(argc, argv, nil, NSStringFromClass([XYZAppDelegate class]));
    } 
}

程序运行良好，我只是对这个案例很好奇.通知指向第 7 行，当我这样做时，我可以在行之间拖动它，出现警告警告我指令指针的移动可能会导致严重问题.那么，指令指针是什么?会消失吗?

The program works fine and I'm just curious about the case. The notification pointed at the 7th line and I could drag it among lines when I do so, a warning showed up warns me the moving of instruction pointer may cause serious problems. So, what's the instruction pointer? Can it disappear?

我真的很少有编程经验，这几天刚开始学习 iOS 编程，我几乎不知道线程是什么，我发现 SIGTERM 是 Unix 信号之一，它似乎无处不在为了我.它是如何工作的?我在wiki上查了一下，发现有些信号比如SIGABRT和SIGTERM有类似的功能，有什么区别?

I really have few programming experiences and I just pick up the iOS programming these days, I hardly know what thread is and I found that SIGTERM is one of the Unix signals which seemed come from nowhere as for me. How does it work? I looked it up in the wiki and found some signals like SIGABRT have similar functions as SIGTERM, what's the difference?

如果您能为我这样的新手解决问题，我将非常感谢您的耐心.

I will truly appreciate your patience if you can solve the problems for a novice like me.

PS:当我退出 xcode 并重新进入时，我发现它消失了.

PS: I found it disappears when I quit xcode and reentry it.

推荐答案

这几乎是 Xcode 中的一个简单错误.每当 Xcode 关闭然后重新打开时，它似乎就会消失.

Pretty much this is a simple bug in Xcode. It seems to just go away whenever Xcode is closed and then reopened.

重启Xcode.

如果持久:单击您所在的文件夹，然后转到您的视图控制器，它应该会消失.

if persistent : click out of the folder you are in, and proceed to your view controller and it should disappear.

点击命令 S 并保存和更新您的所有视图、模型等.

hit command S and save and update all of your views, models, etc.

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