save project

diy2.py

 for i in range(1,10): #行
 for i in range(1,10): #行
     for j in range(1,i+1):
     for j in range(1,i+1):
-        print(j, "X" ,i, "=", (j*i), end=" ")# 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()
+        print(j, "X" ,i, "=","%2d"%(j*i), end=" ")# 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()
\ No newline at end of file
+
+s = 3.14156
+print("%.2f"%s)
\ No newline at end of file