这能让程序变更呼叫程序码中引数的基础值。
This permits the procedure to change the value underlying the argument in the calling code.
通常,您无法以多于程序宣告指定的引数呼叫一个程序。
Usually, you cannot call a procedure with more arguments than the procedure declaration specifies.
通常,您无法以多于程序宣告指定的引数呼叫一个程序。
Usually, you cannot call a procedure with more arguments than the procedure declaration specifies.
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