Question

也许标题不是那么准确，但我遇到了sqrt函数的问题。这是函数

$red-magic-number: 241;
$green-magic-number: 691;
$blue-magic-number: 68;
$brightness-divisor: $red-magic-number + $green-magic-number + $blue-magic-number;

@function brightness($color) {
    $red-component: red($color);
    $green-component: green($color);
    $blue-component: blue($color);

    $number: sqrt((($red-component * $red-component * $red-magic-number) + ($green-component * $green-component * $green-magic-number) + ($blue-component * $blue-component * $blue-magic-number)) / $brightness-divisor);
    @return 100% * ($number / 255);
}

@function text-color($color, $light:#fff, $dark:#000) {
    @if brightness($color) < 65% {
        @return $light;
    } @else {
        @return $dark;
    }
}

失败的部分

$number: sqrt((($red-component * $red-component * $red-magic-number) + ($green-component * $green-component * $green-magic-number) + ($blue-component * $blue-component * $blue-magic-number)) / $brightness-divisor);

@return 100% * ($number / 255);

错误：

Error: Undefined operation: "100% times sqrt(11707.92)/255".

所以$ number不会返回一个数字，而是整个函数。

我该如何解决这个问题？

SQRT没有返回值scss

0 个答案: