save project

diy2.py

+i = 5   # 行
+j = 3   # 列
+print(i,'*',j,'=',(i*j))
+# 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

diy3.py

+i = 1
+for j in range(1,10):
+    print(j,'*',i,'=',(j*i),end=" ")
\ No newline at end of file

diy4.py

+for i in range(1,10):
+    for j in range(i+1):
+        print(j,'*',i,'=',(j*i))
+    print()
\ No newline at end of file