problem description call the timelinechanged event in echart in vue, and assign the currentIndex in it to the variable in data. Then use watch to listen for changes in this variable, and find that you cannot listen . the environmental background of t...
goal: achieve the timeline of the process platform through php for example, a process platform needs to be designed, and the complete process needs to be realized through steps such as A-> B-> C-> D-> E, and there are multiple job in the whole process...