Rebol 编程/确认

使用

CONFIRM question /with choices 

描述

确认用户选择。

CONFIRM 是一个函数值。

参数

• 问题 -- 提示用户（类型：系列）

细化

• /with
  • 选项 --（类型：字符串块）

源代码

confirm: func [
    "Confirms a user choice." 
    question [series!] "Prompt to user" 
    /with choices [string! block!] 
    /local yes no
][
    question: form question 
    if with [
        yes: "Yes" 
        no: "No" 
        if string? choices [yes: choices] 
        if all [block? choices not empty? choices] [
            either tail? next choices [yes: choices/1] [set [yes no] choices]
        ] 
        question: reduce [question yes no]
    ] 
    request/confirm question
]