伽兰子
2017-04-15 18:23

哪里有问题吗
init(coordinateString:String) {
let commaIndex = coordinateString.range(of: ",")!
let firstElement = coordinateString.substring(to: commaIndex.lowerBound)
let secondElement = coordinateString.substring(from: commaIndex.upperBound)
latitude = Double(firstElement)!
longitude = Double(secondElement)!
}玩儿转Swift 2.0(第三季)
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