// NSArray -> JSONNSArray *arr = [NSArray arrayWithObjects:@"1",@"2b",@"3c", nil]; // NSArray -> JSON NSString *str = [arr JSONRepresentation]; NSLog(@"%@",str); // 归档 NSArray -> NSData // 编码 NSMutableData *data = [NSMutableData dataWithCapacity:0]; NSKeyedArchiver *arch = [[NSKeyedArchiver alloc]initForWritingWithMutableData:data]; // 编码 [arch encodeObject:arr forKey:@"arr"]; // 结束编码 [arch finishEncoding]; //解码 NSKeyedUnarchiver *unarch = [[NSKeyedUnarchiver alloc]initForReadingWithData:data]; NSArray *tmpArr = [unarch decodeObjectForKey:@"arr"]; [unarch finishDecoding]; NSLog(@"tmpArr : %@",tmpArr);
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