auto save

diy2.py

-for i in range(1,10):
-    for j in range(1,i+1):
-        print(j,"*",i,"=",(j*i),end="  ")
-    print()
+for i in range(1,100):            #借助变量i设置行循环的次数
+    for j in range(1,i+1):        #借助变量j设置循环的次数
+        print(j,"*",i,"=",(j*i),end="  ")   #打印出乘法表达式
+    print()         #打印完一行算式换行