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Convert Dictionary to JSON in Swift????????????????????????????????????8個

我遇到了以下問題….

我的NSDictionary是這樣的：

var dic : NSDictionary = [ "level" :

[

["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],

["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],

["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],

["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],

["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],

["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0]

]

]

但如果我打印這個,

print(dic); or print(“\(dic)”);

輸出是這樣的：

{

level = (

{

column = 0;

down = 0;

left = 0;

right = 0;

row = 0;

up = 0;

},

{

column = 1;

down = 0;

left = 0;

right = 0;

row = 0;

up = 0;

},

{

column = 2;

down = 0;

left = 0;

right = 0;

row = 0;

up = 0;

},

{

column = 0;

down = 0;

left = 0;

right = 0;

row = 1;

up = 0;

},

{

column = 1;

down = 0;

left = 0;

right = 0;

row = 1;

up = 0;

},

{

column = 2;

down = 0;

left = 0;

right = 0;

row = 1;

up = 0;

}

); }

我怎樣才能得到精確的Json字符串？

在swift中,xcode？

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