var host = ;
= &ot;&ot; + host;
}
var errdata = {
&ot;400&ot;:&ot;请求出现语法错误&ot;,
&ot;401&ot;:&ot;没有访问权限&ot;,
&ot;403&ot;:&ot;服务器拒绝执行该请求&ot;,
&ot;404&ot;:&ot;指定的页面不存在&ot;,
&ot;405&ot;:&ot;请求方法对指定的资源不适用&ot;,
&ot;406&ot;:&ot;客户端无法接受相应数据&ot;,
&ot;408&ot;:&ot;等待请求时服务器超时&ot;,
&ot;409&ot;:&ot;请求与当前资源的状态冲突，导致请求无法完成&ot;,
&ot;410&ot;:&ot;请求的资源已不存在，并且没有转接地址&ot;,
&ot;500&ot;:&ot;服务器尝试执行请求时遇到了意外情况&ot;,
&ot;501&ot;:&ot;服务器不具备执行该请求所需的功能&ot;,
&ot;502&ot;:&ot;网关或代理服务器从上游服务器收到的响应无效&ot;,
&ot;503&ot;:&ot;服务器暂时无法处理该请求&ot;,
&ot;504&ot;:&ot;在等待上游服务器响应时，网关或代理服务器超时&ot;,
&ot;505&ot;:&ot;服务器不支持请求中所用的 http 版本&ot;,
&ot;1&ot;:&ot;无法解析服务器的 dns 地址&ot;,
&ot;2&ot;:&ot;连接失败&ot;,
&ot;-7&ot;:&ot;ca作超时&ot;,
&ot;-100&a