The input parameter named "P1" is of data type integer, the other input parameter "P2" is of type character.
输入参数 “P1” 的数据类型是整型,另一个输入参数 “P2” 的数据类型是字符型。
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Your constants can be integer, character, floating-point, string, Boolean, octet or enumerated but not of type any or a user-defined type. Here are some examples.