少css从一个循环调用动态变量 [英] less css calling dynamic variables from a loop

问题描述

我想做什么：
我有（现在）7种颜色作为变量。

What I'm trying to do: I have (for now) 7 colors as variables. I want to be able to use them at several places and iterate throught them.

这是我无法工作的。

@color1:#06A1C0;
@color2:#8F4F9F;
@color3:#ED1D24;
@color4:#5A9283;
@color5:#B38C51;
@color6:#EC008C;
@color7:#8F4F9F;

@iterations: 8;
.mixin-loop (@index) when (@index > 0) {
color@{index}:hover{
  @tmp: ~'@color';
  @num: @index;
      color: @tmp@num;
  }

.mixin-loop(@index - 1);
}
.mixin-loop (0) {}
.mixin-loop(@iterations);

我需要的
我想要这个结果

What I need I want this as a result

.color1:hover{color#06A1Co}
.color2:hover{color#8F4F9F}
etc..

有什么问题？
找到一种方法来评估@ tmp @ num以获取实际变量。

What's the problem? I can't find a way to evalute @tmp@num to get the actual variable.

UPDATE
Ash Hitchcock提供的完美答案。

UPDATE Perfect answer provided by Ash Hitchcock below.

推荐答案

我刚刚试图用同样的方式用LESS做同样的事情。我想出的解决方案是使用 Parametric Mixin 创建（定义）变量，请参见更新示例：

I have just been trying todo the same thing today with LESS. The solution I came up with is to use a Parametric Mixin to create (define) the variable, see updated exmaple:

@color1:#06A1C0;
@color2:#8F4F9F;
@color3:#ED1D24;
@color4:#5A9283;
@color5:#B38C51;
@color6:#EC008C;
@color7:#8F4F9F;

@iterations: 7;

.define(@var) {
  @colorSet: 'color@{var}';
}


.mixin-loop (@index) when (@index > 0) {
color@{index}:hover{
    .define(@index);
    color:  @@colorSet;
  }

.mixin-loop(@index - 1);
}
.mixin-loop (0) {}
.mixin-loop(@iterations);

希望这有帮助。

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