如何在iOS 10/Sierra/Xcode 8中导入新的日志记录功能? [英] How do I import the new logging functions in iOS 10 / Sierra / Xcode 8?

问题描述

iOS 10和macOS Sierra中有一个新日志记录系统.

There is a new logging system in iOS 10 and macOS Sierra.

但是我似乎无法使其在Xcode中工作. os_log无法识别，文档中也未提及任何其他函数/常量.

But I can't seem to make it work in Xcode. os_log is not recognized, and neither is any other function / constant mentioned in the docs.

使用未解析的标识符'os_log'

Use of unresolved identifier 'os_log'

我需要链接框架或导入标头之类的东西吗?我缺少明显的东西吗?

Do I need to link a framework or import a header or something? Am I missing something obvious?

推荐答案

在Swift中:

import os

os_log("Some message")

在Objective-C中:

In Objective-C:

#import <os/log.h>

os_log(OS_LOG_DEFAULT, "Some message");

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