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uni-app头像上传相关代码 相关代码 updateAvatar() { let baseUrl = '';//后台接口地址 uni.showActionSheet({ itemList: ['查看头像','从相册选择'], success: (res) =>{ let index = res.tapIndex; if(index == 0){//查看头像 let avatarArr = []; avatarArr.push(this.avatar);