Swift的 - 如果小数点等于0，如何从浮点数去除小数？ [英] Swift - How to remove a decimal from a float if the decimal is equal to 0?

问题描述

我用小数点显示一个距离，如果等于0（例如：1200.0Km），我想删除这个小数点，我怎么能这么快？
我显示这个数字是这样的：

$ p $ let distanceFloat：Float =（currentUser.distance！as NSString） .floatValue
distanceLabel.text = String（format：％.1f，distanceFloat）+Km


  let distanceFloat：Float =（currentUser .distance！as NSString）.floatValue 
 distanceLabel.text = String（format：distanceFloat == floor（distanceFloat）？％.0f：％.1f，distanceFloat）+Km
  
 
 
 c $ c> extension Float {
 var clean：String {
 return self％1 == 0？String（format：％.0f，self）：String（self）
} 
} 
  

I'm displaying a distance with one decimal, and I would like to remove this decimal in case it is equal to 0 (ex: 1200.0Km), how could I do that in swift? I'm displaying this number like this:

let distanceFloat: Float = (currentUser.distance! as NSString).floatValue
distanceLabel.text = String(format: "%.1f", distanceFloat) + "Km"

解决方案

How about this?

let distanceFloat: Float = (currentUser.distance! as NSString).floatValue
distanceLabel.text = String(format: distanceFloat == floor(distanceFloat) ? "%.0f" : "%.1f", distanceFloat) + "Km"

Or as an extension:

extension Float {
    var clean: String {
        return self % 1 == 0 ? String(format: "%.0f", self) : String(self)
    }
}

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