学习的记录

摘要：function adit(obj) { //var demoA = document.getElementById("operation"); var demoA = obj; var a = demoA.parentNode.previousSibling;//这个parentNode找到的是< 阅读全文

摘要：var arr = [1,55,2,3,5,56];function sortNumber(a,b) { return a-b;//a-b表示从小到大排序，b-a表示从大到小排序；}console.log(arr.sort(sortNumber)); 阅读全文

摘要：var nume = ["A","2","3","4","5","6","7","8","9","10","J","Q","Ｋ"];var hs = ["红桃","黑桃","梅花","方块"];var wang = ["大王"," 阅读全文

摘要：var sc = document.getElementById("kk");var count = sc.innerText;var nl;//全局变量function change() { //如果 var nl=setInterval("fun()",100);的话就是局部变量，下面的nl就用 阅读全文

摘要：window.onload = function() { var div = document.getElementById("kk"); //这里的"kk"是定义的id选择器； console.log(div.innerHTML);// 这里的div 是上面定义的 var 后面的定量 innerH 阅读全文

摘要：var sn;var result;var result1;var result2;sn = Math.random()*100;// randow这个函数是随机取值0到1的数值；result = Math.round(sn);//四舍五入result1 = Math.ceil(sn);//上浮4. 阅读全文