如何在Objective C中将十六进制数转换为整数和字符串？ [英] How can I convert hex number to integers and strings in Objective C?

问题描述

给出这样的数组的示例：

Given the example of an array like this:

idx = [ 0xe, 0x3,  0x6, 0x8, 0x2 ]

我想在Objective C中获得每个指定项目的整数和字符串表示。一个ruby示例工作完美：

I want to get an integer and string representation of each of the specified items in Objective C. I have mocked up a ruby example which works perfectly:

0xe gives 14 when i run 0xe.to_i and "e" when i run to_i(base=16)
0x3 gives 3 when i run 0x3.to_i and gives 3 when i run to_i(base=16) 

如何在Objective C中实现？

How can I achieve this in Objective C?

推荐答案

你会这样做：

int number = 0xe; // or 0x3, 0x6, 0x8, 0x2

NSString * decimalString = [NSString stringWithFormat:@"%d", number];
NSString * hexString = [NSString stringWithFormat:@"%x", number];

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