the usual file upload is to select a file in the system pop-up window,
then click the open button to upload the file directly,
now we have a requirement that after the operation in the system pop-up window is completed, the upload will not be carried out, but the list of files to be uploaded will be displayed.
it will not be uploaded until a button to start uploading is clicked.
the question now is how to control whether the file is uploaded or not.
the official has provided a case:
beforeUpload method manually return false , store file in variables (you can save those that have been converted, because the file name needs to be displayed for upload, and js can continue to execute), and send the file where you need it
in the project I am working on, the design draft given by ui is based on a fixed 1440px resolution. If it is greater or less than this resolution, such as 1200px or 1800px, it will cause the page layout to be ugly. how do you solve this problem? ...