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Lesson1:基础语法+作业
输出:1、换行输出:print("hello")2、不换行输出:Python3 print("hello",end="") Python2 print "hello",注释:单行注释 #多行注释 """控制流:while (条件):if(条件):elif(条件):else:for i in 列表:作业for in range(9,0,-1): for j in range(i,0,-1): print(str(i)+"*"+str(j)+"="+str(...