时间：2021-07-01 10:21:17 帮助过：44人阅读
虽然，自动生成HTML是很方便的，但是在某些时候，你会想覆盖默认的显示。 {{form.as_table}}和其它的方法在开发的时候是一个快捷的方式，form的显示方式也可以在form中被方便地重写。
每一个字段部件(, , , 或者类似)都可以通过访问{{form.字段名}}进行单独的渲染。</p> <div class="jb51code"> <pre class="brush:css;"> <html> <head> <title>Contact us</title> </head> <body> <h2>Contact us</h2> {% if form.errors %} <p style="color: red;"> Please correct the error{{ form.errors|pluralize }} below. </p> {% endif %} </body> </html> </script></pre> </p> <p>{{ form.message.errors }} 会在 <ul class="errorlist"> 里面显示，如果字段是合法的，或者form没有被绑定，就显示一个空字符串。 我们还可以把 form.message.errors 当作一个布尔值或者当它是list在上面做迭代， 例如：</p> <div class="jb51code"> <pre class="brush:css;"> <div class="field{% if form.message.errors %} errors{% endif %}"> {% if form.message.errors %} <ul> {% for error in form.message.errors %} <li><strong>{{ error }}</strong></li> {% endfor %} </ul> {% endif %} <label for="id_message">Message:</label> {{ form.message }} </div> </script></pre> </p> <p>在校验失败的情况下, 这段代码会在包含错误字段的div的class属性中增加一个”errors”，在一个有序列表中显示错误信息。 </div> <div class=""> <ul class="m-news-opt fix"> <li class="opt-item"> <a href='/python-354943.html' 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