auto save

diy2.py

 for i in range(1,10):
-    for j in range(1,10): # 列
+    for j in range(1,i+1): # 列
     # 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
         print(j,"*",i,"=",(j*i),end="")
     print()
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