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@@ -0,0 +1,66 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta http-equiv="X-UA-Compatible" content="IE=edge">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+
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+<body>
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+ <script>
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+ /* cookie大小4K */
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+ document.cookie = "name='zs'"
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+
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+ var date = new Date()
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+ date.setDate(date.getDate() + 1)
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+ console.log(date)
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+ console.log(date.toUTCString())
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+
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+
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+ document.cookie = "password = '123';expires = " + date.toUTCString()
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+
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+
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+ function setCookie(key, value, expires) {
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+ var date = new Date()
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+ date.setDate(date.getDate() + expires)
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+ document.cookie = key + '=' + value + ';expires=' + date.toUTCString()
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+ }
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+ setCookie('address', 'harbin', 4)
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+
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+
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+ function getCookie(key) {
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+ var cookie = document.cookie
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+ console.log(cookie)
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+
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+ /*
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+ 创建一个arr数组
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+ .split方法 把字符串拆分成数组
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+ ["name='zs'", " password='123'", ' address=harbin']
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+ */
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+ var arr = cookie.split(';')
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+ console.log(arr)
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+ for (var i = 0; i < arr.length; i++) {
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+ console.log(arr[i])
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+ var tmp = arr[i].split('=')
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+ console.log(tmp)
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+ /* trim() */
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+ if (tmp[0].trim() == key) {
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+ return tmp[1]
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+ }
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+ }
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+ }
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+ console.log(getCookie('name'))
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+
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+
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+ function delCookie(key) {
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+ var date = new Date()
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+ date.setDate(date.getDate() - 1)
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+ document.cookie = key + '=null;expires=' + date.toUTCString()
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+ }
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+ delCookie('password')
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+ </script>
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+</body>
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+
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+</html>
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zsydgithub