[請益] function參數有需要再存一次嗎？
常看到有人寫函數會把參數的值用變數存起來，
請問這樣的寫法有什麼特別的用意還是為避免什麼程式陷阱嗎？
為何不要直接用para就好了？
function (para)
{
value = para
value = value + 1
....
}
--
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