斯威夫特:子串的简单方法? [英] Swift: easy way to substring?

问题描述

我有一个字符串:

myString = "mystring"

我只想获取前 5 个字符

I would simply like to get the first 5 characters

在 Swift 中最简单的方法是什么?

which is the easiest way to do that in Swift?

推荐答案

Choppin 的正确答案，但如果您想以纯粹的快速方式进行(不强制转换为 NS 字符串:

Correct answer from Choppin, but if you want to do it in the pure swift way (without casting to NS String :

 myString = myString.substringToIndex(advance(myString.startIndex, 5))

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