jquery - jQuery - check if mousedown

Answer 1

似乎您想将文件从系统拖动到网页，在此 HTML5 中将为您提供帮助。请参考https://www.ibm.com/developerworks/mydeveloperworks/blogs/bobleah/entry/html5_code_example_of_file_api_drag_drop_hard_drive_files_to_a_webpage28?lang=en

Answer 2

$('body').on('mousedown', '#rozwin.scroller-off', function() {
  alert('Mouse down happen');
});