To access derived data types, you use the copy_userdata function, which copies the required data from a non-vue variable, that is, from memory pointed by an argument to a vue script variable.
要想访问派生的数据类型，应该使用copy_userdata函数，它把所需的数据从非vue变量(也就是从参数指向的内存)复制到Vue脚本变量。
This binds each variable to a particular data type, and the variable can store only data of that type.
这样就将每个变量与特定的数据类型绑定在一起，该变量只能存储那种类型的数据。
Because the name of a variable describes both the use of a variable and its data type, you are much less likely to make coding errors involving mismatched data types.
因为变量的名字既描述了变量的用途又描述了其数据类型，这样你就不太可能出数据类型匹配上的编码错误。
Discusses how to choose an appropriate data type for a variable and the benefits of proper variable data type selection.
讨论如何为变数选择适当的资料型别，以及选择适当的变数资料型别有何优点。
This binds a variable to a particular data type, and the variable can store only data of that type.
这让变数得以系结特殊资料型别，而且只储存这种型别的资料。
This paper first analyses traditional record storage structures and gives the design of a data structure that is appropriate for storing length variable and format variable data records.
本文首先对传统的记录存储结构进行分析，进而设计出适宜于存储不确定、不完全信息的存储数据结构。
This paper first analyses traditional record storage structures and gives the design of a data structure that is appropriate for storing length variable and format variable data records.
本文首先对传统的记录存储结构进行分析，进而设计出适宜于存储不确定、不完全信息的存储数据结构。
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