11900程1-20
Quiz
•
Computers
•
9th - 12th Grade
•
Practice Problem
•
Easy
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20 questions
Show all answers
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?
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
Visaul basic.NET 程式執行結果為何?
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Visaul basic.NET 程式, 其執行結果為何?
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?
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?
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
Visaul basic.NET 程式, 其執 行結果為何?
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Visaul basic.NET 程式, 其執行結果為何?
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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