我有以下Swift代码:extensionArray{typealiasEqualTest=(Iterator.Element,Iterator.Element)->BoolfuncgroupSplitIndices(withEqualTestequal:EqualTest)->[Index]{returnindices.groupSplitIndices(withEqualTest:{equal(self[$0],self[$1])})}}extensionArraySlice{typealiasEqualTest=(Iterator.Element,Iterator.Element

这个问题在这里已经有了答案:Cannotinvokeinitializerfortype'Range'withanargumentlistoftype'(Range)'(4个答案)关闭4年前。我有这个String类别:extensionString{subscript(i:Int)->String{returnself[Range(i..)->String{letrange=Range(uncheckedBounds:(lower:max(0,min(count,r.lowerBound)),upper:min(count,max(0,r.upperBound))))letstart=

Documentationsays:TheassociatedBoundtypeisboththeelementandindextypeofCountableRange.Eachelementoftherangeisitsowncorrespondingindex.ThelowerboundofaCountableRangeinstanceisitsstartindex,andtheupperboundisitsendindex.varlowerBound:Bound{get}已声明varlowerBound:BoundTherange'slowerbound.Inanemptyran