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문자

返回值:Integerheight([val|fn])

概述

取得匹配元素当前计算的高度值(px)。

在 jQuery 1.2 以后可以用来获取 window 和 document 的高

参数

valString, Number, FunctionV1.0

设定CSS中 'height' 的值,可以是字符串或者数字,还可以是一个函数,返回要设置的数值。函数接受两个参数,第一个参数是元素在原先集合中的索引位置,第二个参数为原先的高度。

function(index, height)String, Number, FunctionV1.4.1

返回用于设置高度的一个函数。接收元素的索引位置和元素旧的高度值作为参数。

示例

无参数描述:

获取第一段的高

jQuery 代码:
$("p").height();

参数val 描述:

把所有段落的高设为 20:

jQuery 代码:
$("p").height(20);

参数function(index, height) 描述:

以 10 像素的幅度增加 p 元素的高度

jQuery 代码:
  $("button").click(function(){
    $("p").height(function(n,c){
    return c+10;
    });
  });
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