F#：如何使用 "with" 构造函数获取更多值

Question

在 F# 中我可以做到：

let card = { anotherCard with Cost = 4 }

但我想做：

let card = { anotherCard with Cost = 4 with WinPoints = 5 }

或者至少有一些班轮，现在我必须：

let cardTemp = { anotherCard with Cost = 4 }
let card = { cardTemp with WinPoints = 5 }

Answer 1

您可以用分号分隔多个字段设置器：

let card = { anotherCard with Cost = 4; WinPoints = 5 }

您也可以将字段放在单独的行中（没有分号分隔符）：

let card = { anotherCard with
                Cost = 4
                WinPoints = 5 }

F#: how to use "with" constructor for more values