IOS NSLog打印中文封装

标签（空格分隔）： IOS

---

创建一个Foundation_log.m文件，将以下代码复制进去即可

#import <Foundation/Foundation.h>

@implementation NSDictionary (Log)
- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *string = [NSMutableString string];
    
    // 开头有个{
    [string appendString:@"{\n"];
    
    // 遍历所有的键值对
    [self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
        [string appendFormat:@"\t%@", key];
        [string appendString:@" : "];
        [string appendFormat:@"%@,\n", obj];
    }];
    
    // 结尾有个}
    [string appendString:@"}"];
    
    // 查找最后一个逗号
    NSRange range = [string rangeOfString:@"," options:NSBackwardsSearch];
    if (range.location != NSNotFound)
        [string deleteCharactersInRange:range];
    
    return string;
}
@end

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *string = [NSMutableString string];
    
    // 开头有个[
    [string appendString:@"[\n"];
    
    // 遍历所有的元素
    [self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        [string appendFormat:@"\t%@,\n", obj];
    }];
    
    // 结尾有个]
    [string appendString:@"]"];
    
    // 查找最后一个逗号
    NSRange range = [string rangeOfString:@"," options:NSBackwardsSearch];
    if (range.location != NSNotFound)
        [string deleteCharactersInRange:range];
    
    return string;
}

@end

方法二

创建一个NSDictionary的分类，然后在.m中加入以下代码

#import "NSDictionary+Log.h"

@implementation NSDictionary (Log)
//字典分类中重写系统方法
-(NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
    //初始化可变字符串
    NSMutableString *string = [NSMutableString string];
    //拼接开头[
    [string appendString:@"["];

    //拼接字典中所有的键值对
    [self enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {
            [string appendFormat:@"%@:",key];
            [string appendFormat:@"%@",obj];
      }];

    //拼接结尾]
    [string appendString:@"]"];

    return string;
}

@end