没有人觉得 swift 是一门丑陋的语言吗? - V2EX
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expkzb
V2EX    Swift

没有人觉得 swift 是一门丑陋的语言吗?

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    expkzb 2015-10-10 14:21:53 +08:00 3609 次点击
    这是一个创建于 3654 天前的主题,其中的信息可能已经有所发展或是发生改变。
    dorentus
        1
    dorentus  
       2015-10-10 16:08:00 +08:00
    说说哪里丑陋了?
    expkzb
        2
    expkzb  
    OP
       2015-10-10 16:20:27 +08:00
    @dorentus 比如这种东西

    func jediTrainer () -> ((String, Int) -> String) {
    func train(name: String, times: Int) -> (String) {
    return "\(name) has been trained in the Force \(times) times"
    }
    return train
    }
    let train = jediTrainer()
    train("Obi Wan", 3)

    操作符太多,也过于抽象,个人认为不太符合编程语言发展的趋势
    dorentus
        3
    dorentus  
       2015-10-10 18:00:54 +08:00
    func jediTrainer()(name: String, times: Int) {
    return "\(name) has been trained in the Force \(times) times"
    }

    这样看着是不是舒服些?
    dorentus
        4
    dorentus  
       2015-10-10 18:08:08 +08:00 via iPhone
    另外通常情况下比较少会遇到一定要这么做的,如果一定要这么做那么你肯定有使用函数式语言的背景,那么理解上也不会有啥问题。
    dorentus
        5
    dorentus  
       2015-10-10 18:09:16 +08:00 via iPhone
    @dorentus 不过上面这个我把参数写反了
    expkzb
        6
    expkzb  
    OP
       2015-10-10 18:14:06 +08:00
    @dorentus

    func jediTrainer()(name: String, times: Int) {
    return "\(name) has been trained in the Force \(times) times"
    }

    对 swift 了解不深,这个和我的那个是等价的吗?貌似只返回了一个字符串并没有返回函数
    dorentus
        7
    dorentus  
       2015-10-10 21:05:15 +08:00   1
    @expkzb 看下这个你就明白了:
    http://swifter.tips/currying/
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