標籤：name script res lang pre identity text function 驗證
代碼如下：
<body><table><tr><td>姓名：</td><td><input type="text" name="TrueName" id="TrueName" /></td></tr><tr><td colspan="2"><input type="submit" value="submit" onclick="return check();" /></td></tr></table></body><script language="JavaScript">function Check(){ if(document.getElementById(‘TrueName‘).value==‘‘) { alert(‘必須輸入姓名！‘); document.getElementById(‘TrueName‘).focus(); return false; } if(document.getElementById(‘Identity‘).value==‘‘) { alert(‘必須輸入社會安全號碼碼！‘); document.getElementById(‘Identity‘).focus(); return false; } if(document.getElementById(‘Tel‘).value==‘‘) { alert(‘必須輸入聯絡電話！‘); document.getElementById(‘Tel‘).focus(); return false; } if(document.getElementById(‘Address‘).value==‘‘) { alert(‘必須輸入聯絡地址！‘); document.getElementById(‘Address‘).focus(); return false; } if(document.getElementById(‘PassWord‘).value==‘‘) { alert(‘密碼不可為空！‘); document.getElementById(‘PassWord‘).focus(); return false; } if(document.getElementById(‘PassWord‘).value!=document.getElementById(‘RPass‘).value) { alert(‘兩次輸入的密碼不一致！‘); document.getElementById(‘PassWord‘).focus(); return false; }}</script><script language="JavaScript">function Check(){ if(document.getElementById(‘TrueName‘).value==‘‘) { alert(‘必須輸入姓名！‘); document.getElementById(‘TrueName‘).focus(); return false; } if(document.getElementById(‘Identity‘).value==‘‘) { alert(‘必須輸入社會安全號碼碼！‘); document.getElementById(‘Identity‘).focus(); return false; } if(document.getElementById(‘Tel‘).value==‘‘) { alert(‘必須輸入聯絡電話！‘); document.getElementById(‘Tel‘).focus(); return false; } if(document.getElementById(‘Address‘).value==‘‘) { alert(‘必須輸入聯絡地址！‘); document.getElementById(‘Address‘).focus(); return false; } if(document.getElementById(‘PassWord‘).value==‘‘) { alert(‘密碼不可為空！‘); document.getElementById(‘PassWord‘).focus(); return false; } if(document.getElementById(‘PassWord‘).value!=document.getElementById(‘RPass‘).value) { alert(‘兩次輸入的密碼不一致！‘); document.getElementById(‘PassWord‘).focus(); return false; }}</script>
JS非空驗證
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