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Convert NSArray to NSString in Objective-C

我有一阵列,内容是:

 (
            "<MPConcreteMediaItem: 0x1b7dd0> 8671085923283003246",
            "<MPConcreteMediaItem: 0x1b7e50> 16275751483823231324",
            "<MPConcreteMediaItem: 0x1b7e70> 4976771456698615367"
 )

我将以下守则用于指定一个安保部,以制定我的标准:

NSString *myString = [myArray description];

而现在仍然如预期的那样:

 (
            "<MPConcreteMediaItem: 0x1b7dd0> 8671085923283003246",
            "<MPConcreteMediaItem: 0x1b7e50> 16275751483823231324",
            "<MPConcreteMediaItem: 0x1b7e70> 4976771456698615367"
 )

现在,我要说,我要把我的雕刻改成一个叫做新阵列的阵列。

NSArray *newArray = [[NSArray alloc]init];
newArray = [myString componentsSeparatedByString:@","];

但新阿雷拉的内容现在有所不同:

(       
"(
    "<MPConcreteMediaItem: 0x1b7dd0> 8671085923283003246"",
        "
    "<MPConcreteMediaItem: 0x1b7e50> 16275751483823231324"",
        "
    "<MPConcreteMediaItem: 0x1b7e70> 4976771456698615367""
)"
)

Any idea what I need to do to fix this?

Answer 1

两种方法

用途

NSString *myString = [myArray componentsJoinedByString:@","]; //instead of [myArray description];

Answer 2

这是国家航空航天局的印刷材料。

"(
"<MPConcreteMediaItem: 0x1b7dd0> 8671085923283003246"",
    "
"<MPConcreteMediaItem: 0x1b7e50> 16275751483823231324"",
    "
"<MPConcreteMediaItem: 0x1b7e70> 4976771456698615367""
)"

To print out the individual elements in the array try this and see what happens

NSString *myString1 = [myArray objectAtIndex:1];
NSString *myString2 = [myArray objectAtIndex:2];
NSLog(myString1);
NSLog(myString2);

Answer 3

也许我没有一件事,但你在“C”型护卫而不是“NSString”上采取行动。你们需要更多的“@”。

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