Objective C NSString 问题 [英] Objective C NSString problem

问题描述

我有一个 NSString，我需要逐个字符地检查它，并且:

I have a NSString that I need to examine character by character and:

 examine char
    perform calculation
 loop (until string ends)

对执行此操作的最佳方法有任何想法吗?我需要转换 NSString到 NSArray 或 C 字符串?

Any thoughts on the best way to do this? Do I need to convert the NSString to a NSArray or C string?

推荐答案

最简单的方法是使用 NSString 的 characterAtIndex: 方法:

The simplest way to go about it is using NSString's characterAtIndex: method:

int charIndex;
for (charIndex = 0; charIndex < [myString length]; charIndex++)
{
    unichar testChar = [myString characterAtIndex:charIndex];
    //... your code here
}

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