数组，字符串相互转化

数组转字符串

var imgArr = this.pic
console.log(imgArr, 'imgArr')
                
var imgStr = this.pic.toString()
console.log(imgStr, 'imgStr')

 

 字符串转数组

var imgStr = res.data.data.img
console.log(imgStr, 'imgStr')
                            
var imgArr = imgStr.split(',')
console.log(imgArr, 'imgArr')