![js中有["1","2","3","4"]这样一个string，怎么把它变成array](/aiimages/js%E4%B8%AD%E6%9C%89%5B%26quot%3B1%26quot%3B%2C%26quot%3B2%26quot%3B%2C%26quot%3B3%26quot%3B%2C%26quot%3B4%26quot%3B%5D%E8%BF%99%E6%A0%B7%E4%B8%80%E4%B8%AAstring%EF%BC%8C%E6%80%8E%E4%B9%88%E6%8A%8A%E5%AE%83%E5%8F%98%E6%88%90array.png)
![[求助] python 如何爬取 网页上调用JS函数打开的视频链接](/aiimages/%5B%E6%B1%82%E5%8A%A9%5D+python+%E5%A6%82%E4%BD%95%E7%88%AC%E5%8F%96+%E7%BD%91%E9%A1%B5%E4%B8%8A%E8%B0%83%E7%94%A8JS%E5%87%BD%E6%95%B0%E6%89%93%E5%BC%80%E7%9A%84%E8%A7%86%E9%A2%91%E9%93%BE%E6%8E%A5.png)
Request.ServerVariables("HTTP_REFERER")
字符串处理下strLength = document.referrer.length
strUrl = document.referrer.substring( 7 , strLength )
strUrl = strUrl.substring( 0 , strUrl . indexOf("/") )
document.write( strUrl )
函数说明
str.Length -------------------返回字符串总长度
str.substring( start_Index, stop_Index ) -----------------截取指定区间字符串
str.indexOf( child_str ) -------------------------返回子字符串第一次在str中出现的位置的
用js来获取原跳转地址获取window 内部的参数
//获取来源url：ref
var ref = ''
if (document.referrer.length > 0) {
ref = document.referrer
}
try {
if (ref.length == 0 && opener.location.href.length > 0) {
ref = opener.location.href
}
} catch (e) {}
当前页面地址：window.location.href
