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                        /JavaScript进阶篇

一直测试offsetHeight所输出的值不同？

document.write("scrollWidth"+document.documentElement.scrollWidth+" ");
document.write("scrollHeight"+document.documentElement.scrollHeight+" ");
document.write("offsetWidth"+document.documentElement.offsetWidth+" ");
document.write("offsetHeight"+document.documentElement.offsetHeight+" ");
document.write("offsetWidth"+document.documentElement.offsetWidth+" ");
document.write("offsetHeight"+document.documentElement.offsetHeight+" ");
document.write("offsetWidth"+document.documentElement.offsetWidth+" ");
document.write("offsetHeight"+document.documentElement.offsetHeight+" ")

结果：

scrollWidth370
scrollHeight643
offsetWidth370
offsetHeight82
offsetWidth370
offsetHeight126
offsetWidth370
offsetHeight170