I finally find some pages related to how to make environment for office 365 sharepoint online dev, if you want to know that, you should go this link.
I’ve already created office 365 my own tenant and with my own configuration such as domain which I own, service and other service values to activate for office 365. so this post just concentrate on how to make environment for office 365 sharepoint online dev.
First. Go to SharePoint admin center , then select settings
Then go to “Custom Script” section, please change value to “Allow users to run custom script on personal sites”
Second, You go to SharePoint admin center, then open apps
Click to “App Catalog” Select “There is no app catalog site created for your tenant”. then select “Create a new app catalog site
You have to valid values to create app catalog site , if input properly , click “OK” if you go to SharePoint admin center, you can see the site which you just created , it looks provisioning to that site.
You can use it to upload any custom apps that your organization has developed.Uploading custom apps isn’t much more complicated that uploading a document to a library and setting some properties. You can use the App Catalog site to do things like install custom or third-party apps on sites for users (also called app deployment), if you want to know more how to add custom apps and install apps, you need to go to this link.
Frankly I’m happy to make this post, it is clearly help to approach sharepoint online development.