save project

diy2.py

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