string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B1%9F%E6%81%A9%E5%85%AB%E7%BA%BF%E6%8C%87%E6%A0%87%E7%9A%84%E6%BA%90%E4%BB%A3%E7%A0%81%E4%B8%BB%E5%9B%BE => Failed to connect to 61.171.74.35 port 38041: Connection refused"
江恩八线指标的源代码主图
