formal value parameter

基本解釋

It's not important whether a formal parameter has a default value or not.
形式參數(shù)有沒(méi)有默認(rèn)值并不重要。
This paper presents that the essence of data transferring from actual argument to formal parameter is value delivery and one-way.
函數(shù)在調(diào)用過(guò)程中常常存在著實(shí)參和形參之間的數(shù)據(jù)傳遞。
No argument may receive a value more than once -- formal parameter names corresponding to positional arguments cannot be used as keywords in the same calls.
實(shí)際參數(shù)不能一次賦多個(gè)值——形式參數(shù)不能在同一次調(diào)用中同時(shí)使用位置和關(guān)鍵字綁定值。