save project

diy2.py

-i = 5   
-j = 3 
-print(i,"*",j,"=",(i*j)) # 列
+i = 1   
+for i in range(1,10):
+    for j in range(1,i+1):
+        print(i,"*",j,"=",(i*j),end="  ")
+    print() 
 # 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