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模板过滤器 - 切片


示例

从列表中获取第 1、2 和 3 个项目(第一个项目是第 0 个项目)

<h1>{{ fruits|slice:"1:4" }}</h1>
运行示例 »

定义和用法

slice 过滤器返回列表中指定的项目。

您可以定义起始(包含)和结束(不包含)索引。

如果使用负索引,则表示从列表末尾开始切片,-1 指的是最后一个项目,-2 指的是倒数第二个项目,依此类推。


语法

{{ list|slice:"from:to" }}

模板过滤器通过使用管道 | 字符后跟过滤器的名称来定义。

参数通过使用冒号 : 字符后跟参数值来定义。


参数

描述
from 可选。开始切片的索引。如果省略,则默认值为 0,切片将从第一个项目开始。
to 可选。结束切片的索引。如果省略,则切片将到最后一个项目结束。

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