下载pip包时请求超时，换下国内的源进行下载 python -m pip install --upgrade pip -i https://py...

1：安装mwget wget http://jaist.dl.sourceforge.net/project/kmphpfm/mwget/0.1...

1：找到对应版本 mwgethttps://repo.anaconda.com/archive/Anaconda3.-5.3.0-Linux-x...

NSRange range = [str rangeOfString:@"\\d[\\d.,]*(?=元)" options:NSRegular...

增加一个富文本属性 NSBaselineOffsetAttributeName:@(NSUnderlineStyleSingle) NSBase...