接口直接返回图片 uniapp如何显示

uni.request({
	url: `http://admin.tcsjk.com/api/V1/imageCode?phone=${phone}`,
	responseType: "arraybuffer",
	success: res => {
		let datas = res.data
		this.imgCode = 'data:image/png;base64,' + btoa(
			new Uint8Array(datas).reduce((datas, byte) => datas + String.fromCharCode(byte), '')
		);
	},
})

<u--image :src="imgCode" mode="widthFix" width="100%" height="70rpx" @click="getImgCode" />