Objective-C日志输出预处理宏

秒速五厘米 2022-05-25 14:11 107阅读 0赞

预处理宏

1、函数：**\_\_func\_\_** 使用 **%s**

2、行号：**\_\_LINE\_\_** 使用 **%d**

3、文件路径：**\_\_FILE\_\_** 使用 **%s**

4、函数：**\_\_PRETTY\_FUNCTION\_\_** 使用 **%s**

5、选择器：**NSStringFromSelector(\_cmd)** 使用 **%@**

6、对象类：**NSStringFromClass(\[self class\])** 使用 **%@**

7、源文件名称：**\[\[NSString stringWithUTF8String:\_\_FILE\_\_\] lastPathComponent\]** 使用 **%@**

8、栈信息：**\[NSThread callStackSymbols\]** 使用 **%@**

代码示例

@implementation ViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        // Do any additional setup after loading the view, typically from a nib.
    
        NSLog(@"\n<------------\n函数=>%s\n行号=>%d\n文件路径=>%s\n函数=>%s\n选择器=>%@\n对象类=>%@\n源文件名称=>%@\n栈信息=>%@\n------------>\n", __func__, __LINE__, __FILE__, __PRETTY_FUNCTION__, NSStringFromSelector(_cmd), NSStringFromClass([self class]), [[NSString stringWithUTF8String:__FILE__] lastPathComponent], [NSThread callStackSymbols]);
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end

结果

2018-05-15 17:41:11.368894+0800 Test[13073:824330] 
    <------------
    函数=>-[ViewController viewDidLoad]
    行号=>72
    文件路径=>/Users/zhangshaoyu/Desktop/zsy_document/dev_document/objectiveC_Demo/Test/Test/ViewController.m
    函数=>-[ViewController viewDidLoad]
    选择器=>viewDidLoad
    对象类=>ViewController
    源文件名称=>ViewController.m
    栈信息=>(
    	0   Test                                0x000000010423cfb1 -[ViewController viewDidLoad] + 1041
    	1   UIKit                               0x00000001061c3d51 -[UIViewController loadViewIfRequired] + 1235
    	2   UIKit                               0x000000010620b4dc -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 68
    	3   UIKit                               0x000000010620b818 -[UINavigationController _startTransition:fromViewController:toViewController:] + 153
    	4   UIKit                               0x000000010620c92f -[UINavigationController _startDeferredTransitionIfNeeded:] + 841
    	5   UIKit                               0x000000010620db90 -[UINavigationController __viewWill