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C Programing --- Basic 02

Authored by 劉雲輝 劉雲輝

Computers

University

Used 38+ times

C Programing --- Basic 02
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

定義一個自訂函式如下:

函式型態 sum(int first,int n,int ratio){

int i,total=0;

for(i=1;i<=n;i++)

  total = total +(first*pow(ratio,i-1));

return total;

}

請問函式型態為下列何者?

void

char

int

float

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

定義一個自訂函式如下:

函式型態 transform(float c){

c=c*9/5+32;

return c;

}

請問函式型態為下列何者?

void

float

int

char

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

定義一個自訂函式如下:

函式型態 forward(){ 

digitalWrite(A_1A, LOW); 

analogWrite(A_1B, Speed); 

digitalWrite(B_1A, LOW); 

analogWrite(B_1B, Speed);

}

請問函式型態為下列何者?

void

float

int

char

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

以下是C程式碼片斷,請問執行後,螢幕會顯示何內容?

int test(int a,int b){

 int i,total=0;

 total=a*b;

 return total;

}

int main(void)

{

  printf("%d \n",test(2,3)); //printf()是顯示資料於螢幕的庫存函式,%d為整數格式

  return 0;

}

2

3

5

6

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Arduino Uno板可使用analogWrite(3,數值)輸出PWM,

請問數值範圍為何?

0~5

0~10

0~255

0~1023

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Arduino Uno板可使用

x=analogRead();

來讀取類比訊號,

請問x數值的範圍為何?

0~5

0~10

0~255

0~1023

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

關於馬達驅動板L298N,圖中?處的四個接腳是作何用?

控制馬達旋轉速度

控制馬達旋轉方向

馬達驅動電源的輸入

馬達驅動電源的輸出

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