多边形对角线规律有哪些_多边形对角线规律有哪些
+△+ window.onload = function () {
document.getElementById("mainFrame").src= "http://batit.aliyun.com/alww.html?id=00000000003727666140";
∪^∪ }
∪ω∪
●﹏●
+△+ window.onload = function () {
document.getElementById("mainFrame").src= "http://batit.aliyun.com/alww.html?id=00000000003727666140";
∪^∪ }
∪ω∪
●﹏●