Javascr ipt表单判断示例演示，虽然现在都Ajax了，但比较传统的JS表单判断同样也很实用哦，必竟简单，容易做，本表单包括了基本的文本框判断、复选框判断、下拉列表框判断、单选按钮判断等，囊括了常用的表单数据判断项，为新手提供有力的参考。-Javascr ipt form judgment example demonstrates, though now have a Ajax, but in comparison with the conventional JS form judgment is also very practical Oh, it is simple, easy to do, the form includes the basic text box judgment, judgment, check box drop-down list box, radio button judge judgement, include the commonly used form to judge the data item for the novice, provide a strong reference