extension String {
func toDouble() -> Double? {
return Double(self)
}
func toFloat() -> Float? {
return Float(self)
}
func toInt() -> Int? {
return Int(self)
}
func toURL() -> NSURL? {
return NSURL(string: self)
}
}
资源来自网络和日常整理，持续更新
字符串转数值 资源来自网络和日常整理，持续更新
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本文标题：Swift-String Extension
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