js验证代码怎么写( 三 )

<!–function isEnglish(name) //英文值检测{ if(name.length == 0)return false;for(i = 0; i < name.length; i++) { if(name.charCodeAt(i) > 128)return false;}return true;}function isChinese(name) //中文值检测{ if(name.length == 0)return false;for(i = 0; i < name.length; i++) { if(name.charCodeAt(i) > 128)return true;}return false;}function isMail(name) // E-mail值检测{ if(! isEnglish(name))return false;i = name.indexOf(” at ”);j = name dot lastIndexOf(” at ”);if(i == -1)return false;if(i != j)return false;if(i == name dot length)return false;return true;}function isNumber(name) //数值检测{ if(name.length == 0)return false;for(i = 0; i < name.length; i++) { if(name.charAt(i) < ”0″ || name.charAt(i) > ”9″)return false;}return true;}function CheckForm(){ if(! isMail(form.Email.value)) { alert(”您的电子邮件不合法!”);form.Email.focus();return false;}if(! isEnglish(form.name.value)) { aler 。

js验证代码怎么写

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