用以替换系统NSLog的YouXianMingLog

这是本人自己使用并改良的用以替换系统NSLog的类，非常好用，以下是使用示例，现在开源出来并提供源码，好用的话顶一下吧^_^

效果：

YouXianMingLog.h 与 YouXianMingLog.m

////  YouXianMingLog.h////  http://home.cnblogs.com/u/YouXianMing///  https://github.com/YouXianMing////  Created by YouXianMing on 15/1/3.//  Copyright (c) 2015年 YouXianMing. All rights reserved.//#import 
    
     #define ON   1#define OFF  0///   CONFIG   /#define NO_LOG          OFF   // 禁用Log#define SWITCH_LOG      ON    // 切换打印#define TIME_STAMP      OFF   // 时间戳#define FILE_NAME       OFF   // 文件名#if SWITCH_LOG#if NO_LOG#define NSLog(args...)#else#define NSLog(args...) ExtendNSLog(__FILE__,__LINE__,__PRETTY_FUNCTION__,args);#endif#endifvoid ExtendNSLog(const char *file, int lineNumber, const char *functionName, NSString *format, ...);
    

////  YouXianMingLog.m////  http://home.cnblogs.com/u/YouXianMing///  https://github.com/YouXianMing////  Created by YouXianMing on 15/1/3.//  Copyright (c) 2015年 YouXianMing. All rights reserved.//#import "YouXianMingLog.h"#ifndef GCDExecOnce#define GCDExecOnce(block) \{ \static dispatch_once_t predicate = 0; \dispatch_once(&predicate, block); \}#endif#define DMDEBUG_DEFAULT_DATEFORMAT @"HH:mm:ss.SSS"static NSDateFormatter* _DMLogDateFormatter = nil;void ExtendNSLog(const char *file, int lineNumber, const char *functionName, NSString *format, ...){    // 获取时间格式    GCDExecOnce(^{        _DMLogDateFormatter = [[NSDateFormatter alloc] init];        [_DMLogDateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];        [_DMLogDateFormatter setDateFormat:DMDEBUG_DEFAULT_DATEFORMAT];    });    #if TIME_STAMP    // 获取当前时间戳    const char *nowCString = [[_DMLogDateFormatter stringFromDate:[NSDate date]] cStringUsingEncoding:NSUTF8StringEncoding];        // 处理format    va_list ap;    va_start (ap, format);    if (![format hasSuffix: @"\n"]) {        format = [format stringByAppendingString: @"\n"];    }    NSString *body = [[NSString alloc] initWithFormat:format arguments:ap];    va_end (ap);    #if FILE_NAME    // 获取一些参数    NSString *fileName = [[NSString stringWithUTF8String:file] lastPathComponent];        // 打印    fprintf(stderr, "%s %s:%d %s", nowCString, [fileName UTF8String], lineNumber, [body UTF8String]);#else    fprintf(stderr, "%s %s", nowCString, [body UTF8String]);#endif    #else    // 处理format    va_list ap;    va_start (ap, format);    if (![format hasSuffix: @"\n"]) {        format = [format stringByAppendingString: @"\n"];    }        NSString *body = [[NSString alloc] initWithFormat:format arguments:ap];    va_end (ap);        #if FILE_NAME    // 获取一些参数    NSString *fileName = [[NSString stringWithUTF8String:file] lastPathComponent];        // 打印    fprintf(stderr, "%s:%d %s", [fileName UTF8String], lineNumber, [body UTF8String]);#else     fprintf(stderr, "%s", [body UTF8String]);#endif    #endif}

以下是配置的地方：