So I have this swift code:
所以我有这个快速的代码：
func didReceiveResponse(response:String) {
...
let substr = response[11...]
By my interpretation, substr should be a Substring referencing all characters after index 11 in the response string.
根据我的解释，substr应该是一个子串，引用响应字符串中索引11之后的所有字符。
What actually happens is this compiler error:
实际发生的是这个编译器错误：
Cannot subscript a value of type 'String' with an index of type 'CountablePartialRangeFrom<Int>'
无法使用类型为“CountablePartialRangeFrom
This seems like it should be obvious, can anyone help please?
这似乎应该是显而易见的，任何人都可以帮忙吗？
1 个解决方案
#1
6
Whoops. Seems I needed to just do this:
哎呦。似乎我需要这样做：
let idx = response.index(response.startIndex, offsetBy: 11)
let substr = response[idx...]
#1
6
Whoops. Seems I needed to just do this:
哎呦。似乎我需要这样做：
let idx = response.index(response.startIndex, offsetBy: 11)
let substr = response[idx...]