9 Form Fields and Widgets: Form fields ---deal with the logic of input validation and are used directly in templates. Widgets--- deal with rendering of HTML form input elements on the web page and extraction of raw submitted data. However, widgets do need to be assigned to form fields....
This behaves exactly like fetch() except that it only returns the text from the page,stripping out html tags and other irrelevant data. fetchform($URI) --- This behaves exactly like fetch() except that it only returns the form elements from the page,stripping out html tags and other irrel...
【rows="10" cols="30"】的意思是定义一个30个字符宽,10行高的文本区。 <textareaname="message"rows="10"cols="30">The car was playing in the garden.</textarea> <button> 元素 <button>元素定义可点击的按钮,请示中为按钮规定type属性。如果在HTML表单中使用button元素,不同的浏览器会提交不同的值。