[填空題] 如果存在如下過(guò)程: Private Function FMax( a( ) As Integer) Dim First As Integer,
[填空題] 如果存在如下過(guò)程: Private Function FMax( a( ) As Integer) Dim First As Integer, Last As Integer, i As IntegerFirst = LBound(a)Last = UBound(a)Max = a(First)For i = First To Last If a (i)>Max Then Max=a (i)NextFMax = Max End Function Private Sub Commandl Click( ) ReDim m (1 To 4) As Integerre(1) =20: m(2) =30: m(3) =50: m(4) =100 c = FMax(m)Print c End Sub 單擊命令按鈕,其輸出結(jié)果為 【13】 。
正確答案:100
參考解析:[命題目的] 考查考生對(duì)數(shù)組下標(biāo)獲取函數(shù)的掌握情況。[解題要點(diǎn)] 在程序Sub中定義了一個(gè)含4個(gè)元素的數(shù)組,并且分別給它們賦值,數(shù)組上界是4,下界為1;將數(shù)組m作為實(shí)參調(diào)用Fmax事件過(guò)程,并將數(shù)組m的地址傳遞給數(shù)組d,即此時(shí)數(shù)組a與m用一個(gè)存儲(chǔ)空間;將數(shù)組的上界和下界分別賦給變量Last和First,在賦值表達(dá)式中分別調(diào)用了LBound()函數(shù)求數(shù)組下界,及UBound()函數(shù)求數(shù)組的上界;在循環(huán)語(yǔ)句中,變量的初始值為數(shù)組的下界為1,終值為數(shù)組的上界為4,循環(huán)體是一個(gè)條件語(yǔ)句,如果a(i)中的值大于Max,那么就將a(i)的值賦給Max,當(dāng)循環(huán)結(jié)束后,將Max作為函數(shù)的返回值,所以此事件過(guò)程的功能即為求數(shù)組中的最大值。[考點(diǎn)鏈接] 數(shù)組的應(yīng)用。
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