Well, I would start by learning the basics taking an easy grammar with some audio recording. This is essential since French is read in a different way then English or Spanish, the two other foreign languages that you are learning. I like the Assimil method. A small book that I can carry around and the audio CDs that I transfer on my phone. Maybe an app like duolingo could also help. Bonne chance!

Hi 李阿七, There are many things you could do. The apps that were quoted here, such as Rosetta Stone, or Assimil, come from the direct method approach of the 80's which is enjoyable, but proven inefficient (as for Duolinguo, Babbel, or Fluenz, this is just an absolute waste of time). There is a student here on italki, who has a very popular blog, Benny "the Irish polyglot". I would check his tips as he has galore, and tried pretty much everything every time he started a new language, and see what appeals to you more. From lessons, books, apps, to full immersion, etc. He has a Ted talk and other videos as well. 加油, M

Merci beaucoup

Bonjour 李阿七, à mon avis pour étudier le français du niveau débutant, c'est utile que vous utilisez logicels Rosetta Stone et Fluenz. mais ils ne sont pas suffier. alors si vous voulez apprendre le français pour le niveau B2-C1, c'est nécessaire que vous utilisiez des livre. j'ai écrit un site que vous pouvez télécharger gratuite quelques livres là-bas. je vous propose que vous étudiiez des livres Grammaire progressive du français, Vocabulaire progressive du français, compréhension orale (améliore écouter) et Expression orale (améliore la conversation) bon courage https://vk.com/wall-28154396?q=%23%D1%84%D1%80%D0%B0%D0%BD%D1%86%D1%83%D0%B7%D1%81%D0%BA%D0%B8%D0%B9&offset=120