Contact us
Choose a category below so we can get back to you as quickly as possible.
1.畫一條線段a,長度為你要的圓的半徑 2.畫一條直線b,即你所要在上面動的那條線 3.在直線b上任意取一點A 4.選中點A和線段a,點“構造→以圓心和半徑做圓” 5.選中點A,點“編輯→操作類按鈕→動畫” 6.點得到的那個動畫按鈕就可以了 7.如有需要,可以找我
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.