iMatt的专栏

例如:<div> hello <a> world</a> </div>希望只返回hello.做法:查找时,text参数为True.print(soup.find("div",text=True).get_text());

1、旧版本中设置RunWeka.ini 中的 maxheap=1024M 2、新版本中去掉此变量（注意：不能加入此变量，或设置 maxstack=1024m )。而是使用javaOpts选项，比较简单的做法如下：javaOpts=-Xmx1024m Weka官方给出的解释： Yes, we removed the maxheap setting because Or...

原因有几种：（前1 种是老外给出的答案）1、you have some values occurring that are not exactly as declared in the headerIf you get this error message than you seem to have declared a nominal attribute in the ARFF...