From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- files/zh-cn/web/api/document/body/index.html | 29 ++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 files/zh-cn/web/api/document/body/index.html (limited to 'files/zh-cn/web/api/document/body') diff --git a/files/zh-cn/web/api/document/body/index.html b/files/zh-cn/web/api/document/body/index.html new file mode 100644 index 0000000000..e9ef372b55 --- /dev/null +++ b/files/zh-cn/web/api/document/body/index.html @@ -0,0 +1,29 @@ +--- +title: document.body +slug: Web/API/Document/body +translation_of: Web/API/Document/body +--- +
+ {{ApiRef}}
+

概述

+

返回当前文档中的<body>元素或者<frameset>元素.

+

语法

+
var objRef = document.body;
+document.body = objRef;
+

示例

+
// 如果HTML结构为<body id="oldBodyElement"></body>,则:
+alert(document.body.id); // "oldBodyElement"
+
+var aNewBodyElement = document.createElement("body");
+
+aNewBodyElement.id = "newBodyElement";
+document.body = aNewBodyElement;
+alert(document.body.id); // "newBodyElement"
+
+

介绍

+

document.body是包含当前页面内容的元素,对于拥有<body>元素的文档来说,返回的是<body>元素,对于一个拥有<frameset>元素的文档来说,返回的是最外层的<frameset>元素.

+

该属性是可写的,且为该属性赋的值必须是一个<body>元素.

+

规范

+ -- cgit v1.2.3-54-g00ecf