For example, the say hello command has a mandatory attribute called name and non-mandatory attribute called country.

例如，sayhello命令有一个称为name的强制性属性和一个称为country的非强制性属性。

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You can set the other data types to be non-mandatory by adding the nillable="true" attribute to that element in the schema.

可以通过为模式中的该元素添加nillable="true"属性来将其他数据类型设置为非必填项。

youdao

You can set the other data types to be non-mandatory by adding the nillable="true" attribute to that element in the schema.

可以通过为模式中的该元素添加nillable="true"属性来将其他数据类型设置为非必填项。

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