#1 for i in range(10):#默认从0开始,步长为1 print("loop",i) #2 for i in range(0,10,1):#步长为1 print("loop",i) #3 for i in range(0,10,2):#步长为2 print("loop",i) # 3 for i in range(0,10,3):#步长为3 print("loop", i) # 4 for i in range…