JQuery第一章js 上机+课后
2024-08-30 22:04:24
- =============上机1 包含字母
- <!DOCTYPE html>
- <html>
- <head>
- <title>sj1.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- document.write("在以下字符中:");
- var count=0;
- var fruit=["America","Greece","Britain","Canxda","China","Egypt"];
- for(var i in fruit){
- document.write(fruit[i]+"<br/>");
- if(fruit[i].indexOf("a")!=-1||fruit[i].indexOf("A")!=-1){
- count++;
- }
- }
- document.write("共有"+count+"字符串中包含a或A");
- </script>
- </head>
- <body>
- </body>
- </html>
- ================
- ===============上机2‘程序调试
- <!DOCTYPE html>
- <html>
- <head>
- <title>sj2.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- var t=prompt("请输入一个整数","");
- if(t<=24){
- if(t>=12&&t<=18){
- document.write("下午好,歡迎來到貴美");
- }else if(t>=19&&t<=23){
- document.write("晚上好,歡迎來到貴美");
- }else{
- document.write("上午好,歡迎來到貴美");
- }
- }else{
- document.write("你輸入的時間不對")};
- </script>
- </head>
- <body>
- </body>
- </html>
- ==================’
- =============上机3 小型计算器
- <!DOCTYPE html>
- <html>
- <head>
- <title>sj3.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- var o1=prompt("請輸入第一個數","");
- var o2=prompt("請輸入第2個數","");
- var ys=prompt("請輸入運算符","");
- var p1=parseInt(o1);
- var p2=parseInt(o2);
- switch(ys){
- case "+":
- var result=p1+p2;
- alert(p1+"+"+p2+"="+result);
- break;
- case "-":
- var result=p1-p2;
- alert(p1+"-"+p2+"="+result);
- break;
- case "*":
- var result=p1*p2;
- alert(p1+"*"+p2+"="+result);
- break;
- case "/":
- var result=p1/p2;
- alert(p1+"/"+p2+"="+result);
- break;
- }
- </script>
- </head>
- <body>
- </body>
- </html>
- ===================
- =================上机4计算科目分数
- <!DOCTYPE html>
- <html>
- <head>
- <title>sj4.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- var sum=0;
- var p1=prompt("請輸入考試科目數量","");
- if(p1==0||p1<0){
- alert("輸入的考试科目无效");
- }else if(isNaN(p1)){
- alert("输入的不是数字");
- }
- else{
- for(var i=1;i<=p1;i++){
- var score=prompt("请输入第"+i+"门科目成绩","");
- if(score<0){
- alert("成绩不能是负数");
- break;
- }else if(isNaN(score)){
- alert("成绩必须是数字");
- break;
- }else
- sum+=parseFloat(score);
- }
- }
- if(sum!=0)
- alert(p1+"门科目的总成绩是:"+sum);
- </script>
- </head>
- <body>
- </body>
- </html>
- ================
- ======课后3打印金字塔直线
- <!DOCTYPE html>
- <html>
- <head>
- <title>kh3.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- document.write("<h3>打印倒正金字塔直线");
- var i=61;
- while(i>0){
- document.write("<hr width="+i+"%/>");
- i=i-10;
- }
- for(var j=0;j<70;j=j+10){
- document.write("<hr width="+j+"%/>");
- }
- </script>
- </head>
- <body style="text-align:center;">
- </body>
- </html>
- =======
- ================课后4邮箱地址
- <!DOCTYPE html>
- <html>
- <head>
- <title>ke4.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- var email=prompt("请输入正确的邮箱地址:","sususan@show.com");
- var index=email.indexOf("@");
- if(index!=-1&&email.indexOf(".")!=-1){
- if(index==0){
- alert("邮箱名称不能为空");
- }else{
- var name=email.substring(0, index);
- alert("邮箱地址正确,邮箱名称是:"+name);
- }
- }
- else{
- alert("邮箱地址必须含有@和.");
- }
- </script>
- </head>
- <body>
- </body>
- </html>
- ============
- =============上机5
- <!DOCTYPE html>
- <html>
- <head>
- <title>kh5.html</title>
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="this is my page">
- <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
- <script type="text/javascript">
- var i=prompt("请输入今天是星期几","");
- switch(i){
- case "星期一":
- alert("新的一周开始 了");
- break;
- case "星期二":
- alert("努力工作");
- break;
- case "星期三":
- alert("努力工作");
- break;
- case "星期四":
- alert("努力工作");
- break;
- case "星期五":
- alert("明天就是周末了");
- break;
- default:
- alert("放松的休息");
- break;
- }
- </script>
- </head>
- <body>
- </body>
- </html>
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