statement. You can declare more than one variable at a time by separating the names with a comma. To define the variable type, use either a type-declaration sign after the name, or the appropriate key word.
语句。一次可以声明多个变量，但变量名称之间需要用逗号分隔。要定义变量类型，请在名称后使用类型声明符号，或者使用适当的关键字。