采用分类的方法来解决
NSArray+Log.h

#import <Foundation/Foundation.h>

@interface NSArray (Log)

@end

@interface NSDictionary (Log)

@end

NSArray+Log.m

#import "NSArray+Log.h"

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *strM = [NSMutableString stringWithString:@"(\n"];
    
    [self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        [strM appendFormat:@"\t%@,\n", obj];
    }];
    
    [strM appendString:@")"];
    
    return strM;
}

@end

@implementation NSDictionary (Log)

- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *strM = [NSMutableString stringWithString:@"{\n"];
    
    [self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
        [strM appendFormat:@"\t%@ = %@;\n", key, obj];
    }];
    
    [strM appendString:@"}\n"];
    
    return strM;
}

@end