只需要新建一个object-c File,随便建立某个类的分类，名字命名为Log。新建后把.h文件删了。并选择Move to Trash。然后把下面的代码复制粘贴覆盖到.m文件上即可。使用时不需要导入文件。你也可以把下面的代码粘贴覆盖到随便一个.m文件，再把这个.m文件拖到项目里面即可。
#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
