指針的指針參數(shù)傳遞？調(diào)用函數(shù)時，它使用實際參數(shù)而不是形式參數(shù)，并貫穿函數(shù)體的整個過程。值可以通過實際參數(shù)傳遞到函數(shù)體，處理后的值只能通過帶回調(diào)的指針參數(shù)傳遞，也可以通過全局數(shù)量傳遞。參數(shù)voidfun

指針的指針參數(shù)傳遞？

調(diào)用函數(shù)時，它使用實際參數(shù)而不是形式參數(shù)，并貫穿函數(shù)體的整個過程。值可以通過實際參數(shù)傳遞到函數(shù)體，處理后的值只能通過帶回調(diào)的指針參數(shù)傳遞，也可以通過全局數(shù)量傳遞。參數(shù)voidfun（char*a[]）{char*P=“add”a[1]=P}是指針數(shù)組，它實際使用指針數(shù)組中的第二個指針元素a[1]?！癆dd”是一個字符串常量，通過本地數(shù)量（指針）P傳遞給a[1]，它等價于：voidfun（char*a[]）{a[1]=“Add”}================================================================================================================================================= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =