classmates=[‘a‘,‘b‘,‘c‘,‘d‘] print(classmates[-1]) print(len(classmates)) classmates.append(‘t‘) classmates.insert(1,‘r‘) classmates.pop() print(classmates)
import turtle turtle.speed(10) colors=[‘#FF6EB4‘,‘#C67171‘,‘#CD4F39‘,‘#8968CD‘,‘#EE9A49‘,‘#FFFF00‘] for i in range(200): turtle.pencolor(colors[i%6]) turtle.forward(i) turtle.left(55) turtle.done()
fr=open(‘c_kk.txt‘,mode=‘r‘,encoding=‘utf-8‘) o=fr.read() fr.close() fw=open(‘kk.txt‘,mode=‘a‘,encoding= ‘utf-8‘) for c in o: fw.write(chr(ord(c)-3)) fw.close()
原文：https://www.cnblogs.com/xiefei33--/p/9113699.html