解决方案实际上非常简单.只需导出phantomjs二进制文件所在的路径即可.在我的情况下，这是/Users/Tom/Downloads/phantomjs-1.9.2/bin，因此

The solution is actually very simple. Just export the path where the binary of phantomjs is. In my case this is /Users/Tom/Downloads/phantomjs-1.9.2/bin, hence

export PATH=$PATH:/Users/Tom/Downloads/phantomjs-1.9.2/bin