OC 解決NSArray、NSDictionary直接打印中文出現亂碼的問題

在iOS開發中，經常需要查看數組中得元素是否是自己想要的，但是蘋果並沒有對直接打印數組中得中文作處理，直接打印就會出現一堆很討厭的東西，解決其實很簡單，就是需要通過為NSArray添加分類，重寫 - (NSString *)descriptionWithLocale:(id)locale方法即可

代碼如下：

#import "NSArray+Log.h"

@implementation NSArray (Log)


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

同理要解決NSDictionary亂碼問題，也需要為NSDictionary類添加一個分類，重寫  - (NSString *)descriptionWithLocale:(id)locale方法

代碼如下：

#import "NSDictionary+MyLog.h"

@implementation NSDictionary (MyLog)


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