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diy2.py

 for i in range(1,10):  
 for i in range(1,10):  
-# 使用变量i和j，代替乘法算式里面的元素，打印出单个乘法算式
     for j in range(1,i+1):    
     for j in range(1,i+1):    
         print(j,"*",i,"=",j*i,end='  ')
         print(j,"*",i,"=",j*i,end='  ')
     print()
     print()
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