函数（ ）用于取消由 setInterval 设置的定时器。
A: number setTimeout(function callback, number delay, any rest)
B: clearTimeout(number timeoutID)
C: number setInterval(function callback, number delay, any rest)
D: clearInterval(number intervalID)
A: number setTimeout(function callback, number delay, any rest)
B: clearTimeout(number timeoutID)
C: number setInterval(function callback, number delay, any rest)
D: clearInterval(number intervalID)
举一反三
- To any P-type semiconductor, the number of holes ( ) the number of free electrons
- In English as in any language the number of words is larger than the number of meanings.
- The function of Body Paragraph is to bring a number of supporting details in a paragraph or a number of paragraphs in an essay.
- 以下两段代码，他们的在输出面板中输出结果是一样的。 a、function求面积(nA:Number,nB:Number):Number{ varnArea:Number=nA*nB; returnnArea; } 求面积(6,6); trace('Theareais:'+求面积(6,6)); b、function求面积(nA:Number,nB:Number):Number{ varnArea:Number=nA*nB; returnnArea; trace(“Theareais:”+nArea); } 求面积(6,6);
- 创建一条弧线的函数是（ ）。 A: arc(number x, number y, number r, number sAngle, number eAngle, boolean counterclockwise) B: rect(number x, number y, number width, number height) C: arcTo(number x1, number y1, number x2, number y2, number radius) D: fillRect(number x, number y, number width, number height)