update w3c code

coderpwh1024 · web-flow · commit 9b8f5821be5d · 2018-02-03T11:12:26.000+08:00
diff --git a/jquery/W3C/other/index.html b/jquery/W3C/other/index.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+<script>
+    var arr = new Array();
+
+    for (var i = 0; i < 3; i++) {
+        arr[i] = new Array();
+        for (var j = 0; j < 6; j++) {
+            arr[i][j] = i * j;
+            document.write(arr[i][j] + " ");
+        }
+        document.write("<br/>")
+    }
+
+</script>
+
+
+</body>
+</html>
diff --git a/jquery/W3C/other/index2.html b/jquery/W3C/other/index2.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+<script type="text/javascript">
+
+    //第一步把之前的数据写成一个数组的形式,定义变量为 infos
+    var infos = [['小A','女',21,'大一'],['小B','男',23,'大三'],['小C','男',24,'大四'],['小D','女',21,'大一'],['小E','女',22,'大四'],
+        ['小F','男',21,'大一'],['小G','女',22,'大二'],['小H','女',20,'大三'],['小I','女',20,'大一'],['小J','男',20,'大三']];
+
+
+    //第一次筛选，找出都是大一的信息
+
+    for(var i=0;i<10;i++){
+
+        for(var j=0;j<infos[i].length;j++){
+            if(infos[i][j]=='大一')
+            {
+                document.write(infos[i]);
+                document.write("<br/>");
+
+                var arr = infos[i];
+                if(arr[1]=='女'){
+                    document.write(arr[0]);
+                    document.write("<br/>");
+                }
+            }
+        }
+    }
+
+
+
+
+    //第二次筛选，找出都是女生的信息
+
+
+</script>
+</body>
+</html>
diff --git a/jquery/W3C/other/index3.html b/jquery/W3C/other/index3.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+    <script type="text/javascript">
+        function count(){
+
+            //获取第一个输入框的值
+            var a = document.getElementById('txt1').value;
+            //获取第二个输入框的值
+            var b = document.getElementById('txt2').value;
+            //获取选择框的值
+            var c = document.getElementById('select').value;
+            //获取通过下拉框来选择的值来改变加减乘除的运算法则
+            var sum;
+            switch(c){
+                case '+':
+                    sum = parseFloat(a)+parseFloat(b);
+                    break;
+                case '-':
+                    sum =parseFloat(a)-parseFloat(b);
+                    break;
+                case '*':
+                    sum = parseFloat(a)*parseFloat(b);
+                    break;
+                default:
+                    sum = parseFloat(a)/parseFloat(b);
+
+
+
+
+            }
+
+            //设置结果输入框的值
+            document.getElementById('fruit').value=sum;
+            return sum;
+
+        }
+    </script>
+</head>
+</head>
+<body>
+<input type='text' id='txt1' />
+<select id='select'>
+    <option value='+'>+</option>
+    <option value="-">-</option>
+    <option value="*">*</option>
+    <option value="/">/</option>
+</select>
+<input type='text' id='txt2' />
+<input type='button' value=' = ' onclick="count()"/> <!--通过 = 按钮来调用创建的函数，得到结果-->
+<input type='text' id='fruit' />
+</body>
+</html>
diff --git a/jquery/W3C/other/index4.html b/jquery/W3C/other/index4.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+    <script type="text/javascript">
+        var mystr = "Hello World!"
+        document.write(mystr.indexOf('o', mystr.indexOf('o') + 1));
+    </script>
+</head>
+</head>
+<body>
+
+</body>
+</html>
