python中循環的練習

#打印99乘法表 for i in range(1,10): for j in range(1,i+1): print(j,'*',i,'=',j*i,end='\t') print() 用列表生成式打印99乘法表 print('\n'.join(['\t'.join(['{}+{}+{}'.format(j,i,i*j) for j in range(1,i+1)

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