digitalRead(KEY)==LOW语句中lOW表示( )。
低电平
举一反三
- digitalRead(KEY)==LOW语句中digitalRead 表示()。
- 触摸传感器实验中,设置LED灯亮语句( )。 A: digitalRead(LED,HIGH) B: digitalWrite(LED,LOW) C: digitalWrite(LED,HIGH) D: digitalRead(LED,LOW)
- What types of lighting are used in the following images: LOW KEY and HIGH KEY? 5.55 Low Key or High Key Lighting?
- digitalWrite(LED,LOW)语句表示()。
- 7.48 High Key or Low Key Lighting?
内容
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voidScan_KEY(){if(digitalRead(KEY)==0){delay(20);if(digitalRead(KEY)==0){KEY_NUM=1;while(digitalRead(KEY)==0);}}}函数中delay(20);表示消除抖动()。
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代码填空【使用递归实现二分查找】 int binarySearch(int a[], int key, int low, int high) { if (low > high) return -1; int mid; mid = (low + high) / 2; if (key == a[mid]) return mid; else if (key < a[mid]) return ________(1)__________; else return ________(2)______________; }
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折半查找中,如果左边界是low,右边界是high,中间位置是mid则如果key A: high=mid-1 B: high=mid+1 C: low=mid-1 D: low=mid+1
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val=digitalRead(buttonpin)语句表示()
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Which one can underline the people in photo? A: Low Key portrait B: High Key portrait C: both D: others