Question

IOS 数组可以转成json吗

Answer 1

IOS数组可以转换车json对象，转换代码：
NSString *str = nil;
//字符串
NSMutableString *string = [[NSMutableString alloc] init];
[string appendString:@"xxxx"];
str = [string JSONString];
NSLog(@"str1:%@",[NSString stringWithString:str]);

//数组
NSArray *array = [[NSArray alloc] initWithObjects:@"111",@"333",@"222", nil];
// NSMutableArray *array = [NSMutableArray array];
str = [array JSONString];
NSLog(@"str2:%@",[NSString stringWithString:str]);
[array release ];

//字典
NSArray *firstArr = [NSArray arrayWithObjects:@"first",@"second", nil];
//基本数据类型转换成NSNumber类型
NSArray *secondArr = [NSArray arrayWithObjects:[NSNumber numberWithDouble:2.1],[NSNumber numberWithBool:NO], nil];
//加到字典中
NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:firstArr,@"first",secondArr,@"second", nil];
//转化成json格式
str = [dic JSONString];
NSString *str2 = [NSString stringWithString:str];
NSLog(@"str3:%@",str2);

//编码
NSData *archive = [NSKeyedArchiver archivedDataWithRootObject:array];
// NSLog(@"archive:%@",archive);
NSArray *arr2 = [NSKeyedUnarchiver unarchiveObjectWithData:archive];
NSLog(@"arr2:%@",arr2);

Answer 2

百度一下 json2.js 然后你看一

下相关文档和例子 你就明白了.

或者直接上 json.org 查一下

javascript 的其它实现 很多js库都可以实现你要这个功能