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11900程1-20

Authored by ljalja'u tjuvatjuva

Computers

9th - 12th Grade

Used 10+ times

11900程1-20
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

在 Visaul basic.NET 語言中, 若要求X值至小數點第一位(即第二位四捨五 入), 應該採用下列何敘述?

X=Int(X*10)/10
X=Int(X*10 + 0.5)/10
X=Int(X*10) + 0.5/10
X=Int(X*100) + 0.5/100

Answer explanation

因為這和VB的運算方式有關,所以不能選1來處理

2.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Media Image

Visaul basic.NET 程式執行結果為何?

0
12
60
不能做

3.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Media Image

Visaul basic.NET 程式, 其執行結果為何?

36
38
40
42

4.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

在 Visaul basic.NET 語言中, 使用函數指令 Right(A,N) 與下列何者功能相 同?

Mid(A, Len(A) - N+1, N)
Mid(A, 1, N)
Mid(A, N, 1)
Mid(A, N 1, N)

Answer explanation

right傳回從字串右方包含指定字元數的字串,以下是範例 Dim AnyString, MyStr AnyString = "Hello World" ' Define string. MyStr = Right(AnyString, 1) ' Returns "d". MyStr = Right(AnyString, 6) ' Returns"World". MyStr = Right(AnyString, 20) ' Returns "Hello World".

5.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

在 Visaul basic.NET 語言中, 若 K=Int(90 * Rnd( ))+10 , 則 K 之範圍為何?

1 ≦ K ≦ 90
10 ≦ K ≦ 90
10 ≦ K ≦ 99
1 ≦ K ≦ 100

Answer explanation

Rnd會傳回包含隨機亂數的 SingleRnd 函數會傳回小於 1 但大於或等於零的值

6.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Media Image

Visaul basic.NET 程式, 其執 行結果為何?

39
53
56
1439

7.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Media Image

Visaul basic.NET 程式, 其執行結果為何?

2.6
52.6
52
53

Answer explanation

Int和Fix都會移除number的小數部分,並傳回產生的整數值 Int和Fix之間的差異在於,如果number為負數,Int會傳回小於或等於 number 的第一個負整數,而Fix則會傳回大於或等於 number 的第一個負整數 例如, Int 會將 -8.4 轉換為 -9,而 Fix 會將 -8.4 轉換為 -8 Dim MyNumber MyNumber = Int(99.8) ' Returns 99. MyNumber = Fix(99.2) ' Returns 99. MyNumber = Int(-99.8) ' Returns -100. MyNumber = Fix(-99.8) ' Returns -99. MyNumber = Int(-99.2) ' Returns -100. MyNumber = Fix(-99.2) ' Returns -99.

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