The element type of the array and the type of the value must be of the same type.

数组的元素类型和值的类型必须相同。

youdao

The third element of the array is the number of points for this assignment type, so I have to invoke the to_s method to convert that integer into a string.

数组第三个元素是该任务类型的分数，所以我必须调用to_s方法，将该整数转换为字符串。

youdao

Values for array type components can contain zero or one element, and values for set and tree type components can have zero or more elements.

用于数组类型的组件的值可以包含0个或1个元素，用于集合和树类型的组件的值可以包含0到多个元素。

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