OC 解决NSArray、NSDictionary直接打印中文出现乱码的问题

在iOS开发中，经常需要查看数组中得元素是否是自己想要的，但是苹果并没有对直接打印数组中得中文作处理，直接打印就会出现一堆很讨厌的东西，解决其实很简单，就是需要通过为NSArray添加分类，重写 - (NSString *)descriptionWithLocale:(id)locale方法即可

代码如下：

#import "NSArray+Log.h"

@implementation NSArray (Log)


- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *str = [NSMutableString stringWithFormat:@"%lu (
", (unsigned long)self.count];
    
    for (id obj in self) {
        [str appendFormat:@"	%@, 
", obj];
    }
    
    [str appendString:@")"];
    
    return str;
}
@end

同理要解决NSDictionary乱码问题，也需要为NSDictionary类添加一个分类，重写  - (NSString *)descriptionWithLocale:(id)locale方法

代码如下：

#import "NSDictionary+MyLog.h"

@implementation NSDictionary (MyLog)


- (NSString *)descriptionWithLocale:(id)locale
{
    NSArray *allKeys = [self allKeys];
    NSMutableString *str = [[NSMutableString alloc] initWithFormat:@"{	
 "];
    for (NSString *key in allKeys) {
        id value= self[key];
        [str appendFormat:@"	 "%@" = %@,
",key, value];
    }
    [str appendString:@"}"];
    
    return str;
}
@end