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$(".btn1").click(function(){
  $("p").height(50);
});

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$(selector).height()

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$(selector).height(length)
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length

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$(selector).height(function(index,oldheight))
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function(index,oldheight)

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  • oldvalue - ¿ÉÑ¡¡£½ÓÊÜÑ¡ÔñÆ÷µÄµ±Ç°Öµ¡£

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