1 #import "NSArray+Log.h"
 2 
 3 @implementation NSArray (Log)
 4 
 5 - (NSString *)descriptionWithLocale:(id)locale
 6 {
 7     // 遍历数组中的所有内容，将内容拼接成一个新的字符串返回
 8     NSMutableString *strM = [NSMutableString string];
 9     
10     [strM appendString:@"(\n"];
11     
12     // 遍历数组,self就是当前的数组
13     for (id obj in self) {
14         // 在拼接字符串时，会调用obj的description方法
15         [strM appendFormat:@"\t%@,\n", obj];
16     }
17     
18     [strM appendString:@")"];
19     
20     return strM;
21 }
22 
23 @end