此SCSS函数的语法不正确吗？未定义的操作错误：

Question

@return（$ page-width-$ gap *（$ columns -1）/ $ columns）

错误说；

Error: Undefined operation: "1% times 8 -1".
        on line 14 of Users/amberjones/Desktop/Sass_Scss_first/sass-project/scss/partials/_functions.scss, in function `col-width`
        from line 15 of Users/amberjones/Desktop/Sass_Scss_first/sass-project/scss/partials/_variables.scss
        from line 2 of sass/Users/amberjones/Desktop/Sass_Scss_first/sass-project/scss/main.scss
>>   @return ($page-width - $gap*($columns -1 ) / $columns)```

Answer 1

错误似乎出在函数col-width的_functions.scss中。 无法将百分比和整数相乘。 您必须将所有都转换为整数，然后使用函数percentage()再次进行转换： percentage function

仅允许对整数进行操作