［已解决］swift代码出错：distance is unavailable call the distanceTo(end) method on the index

代码：

let offset = (index: semiRange.endIndex, offset: 1 – distance(position, semiRange.endIndex))

出错：

/Users/crifan/dev/dev_root/daryun/JianDao/iOS-Client/JianDao/CrifanLib.swift:867:74: ‘distance’ is unavailable: call the ‘distanceTo(end)’ method on the index

如图：

distance is unavailable call the distanceTo(end) method on the index

ios – ‘advancedBy’ API in Swift 2.0 – Stack Overflow

xcode – How to use "distanceTo", "advancedBy" to handle String in Xcode7 beta6 – Stack Overflow

再去参考：

StringExtensionHTML/StringExtensionHTML.swift at master · adela-chang/StringExtensionHTML

改为：

let offset = (index: semiRange.endIndex, offset: 1 – position.distanceTo(semiRange.endIndex))

即可。

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