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Untitled Document function checkname(){ var div = document.getElementById("div1"); div.innerHTML = ""; var name1 = document.form1.text1.value; if (name1 == "") { div.innerHTML = "姓名不能为空!"; document.form1.text1.focus(); return false; } if (name1.length < 4 || name1.length > 16) { div.innerHTML = "姓名输入的长度4-16个字符!"; document.form1.text1.select(); return false; } var charname1 = name1.toLowerCase(); for (var i = 0; i < name1.length; i++) { var charname = charname1.charAt(i); if (!(charname >= 0 && charname = 'a' && charname 12) { div.innerHTML = "密码长度4-12位"; document.form1.text2.select(); return false; } return true; } function checkrepassword(){ var div = document.getElementById("div3"); div.innerHTML = ""; var password = document.form1.text2.value; var repass = document.form1.text3.value; if (repass == "") { div.innerHTML = "密码不位空!"; document.form1.text3.focus(); return false; } if (password != repass) { div.innerHTML = "输入密码和确认密码长度不一致"; document.form1.text3.select(); return false; } return true; } function checkEmail(){ var div = document.getElementById("div4"); div.innerHTML = ""; var email = document.form1.text5.value; var sw = email.indexOf("@", 0); var sw1 = email.indexOf(".", 0); var tt = sw1 - sw; if (email.length == 0) { div.innerHTML = "电子邮件不能位空"; document.form1.text5.focus(); return false; } if (email.indexOf("@", 0) == -1) { div.innerHTML = "电子邮件格式不正确,必须包含@符号!"; document.form1.text5.select(); return false; } if (email.indexOf(".", 0) == -1) { div.innerHTML = "电子邮件格式不正确,必须包含.符号!"; document.form1.text5.select(); return false; } if (tt == 1) { div.innerHTML = "邮件格式不对。@和.不可以挨着!"; document.form1.text5.select(); return false; } if (sw > sw1) { div.innerHTML = "电子邮件格式不正确,@符号必须在.之前"; document.form1.text5.select(); return false; } else { return true; } return ture; } function check(){ if (checkname() && checkpassword() && checkrepassword() && checkEmail()) { return true; } else { return false; } } 用户名: 密码: 确认密码: 电子邮件地址: |
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