then 后面改用箭头函数才行,或者在外面加 let that = this,然后把 this.usernames = response.data 改为 that.usernames = response.data。 初学者易犯的错误之一
then 后面改用箭头函数才行,或者在外面加
let that = this
,然后把this.usernames = response.data
改为that.usernames = response.data
。初学者易犯的错误之一