高度和宽度都将被推断为 Int 类型.因此 area 也是 Int 类型，而 10.762 是 Double 类型.

height and width will both be inferred as of type Int. Therefore area is also of type Int whilst 10.762 is a Double.

在 Swift 中安全是最重要的，所以你需要有两个相同类型的操作数.

And in Swift safety is paramount so you'll need to have both operands of same type.

解决方案是(如 Eric D. 建议的)将区域转换为双精度:

Solution is (as Eric D. suggested) is to convert area to a Double:

let areaInMeters = Double(area) / 10.762