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逆向乘法口诀表
>>> for i in range (9,0,-1): for j in range (i,0,-1): print(str(i)+'*'+str(j)+'='+str(i*j)+' ',end="\t") print() 9*9=81 9*8=72 9*7=63 9*6=54 9*5=45 9*4=36 9*3=27 9*2=18 9*1=9 8*8=64 8*7=56 8*6=48 8*5=40 8...