26个英语字母排成一行，每个字母依次往上跳动10个单位且变为红色，当最后一个字母完成跳动后，再实现字母倒序的跳动。下面一行的26个字母实现不停的同时跳动并发生颜色变换。-26 letters in a row, each letter in turn beat up 10 units and turns red when the last letter of the completion of the beating, and then descending beating. The follo