真机截图（正常）： [图片] iphone 7中截图（图片发生了裁剪）： [图片] 核心代码片段（具体见代码片段:https://developers.weixin.qq.com/s/fUJ4d3m17UxT）： <view class="page">     <canvas       type="2d"       style="width:{{canvasWidth}}px;height:{{canvasHeight}}px;"       id="myCanvas"       class="myCanvas"     ></canvas>     <image src="{{imageSrc}}" mode="widthFix"></image> </view> const app = getApp() Page({   data: {     imageSrc: "",     canvasWidth: '',     canvasHeight: '',     imageSrc:""   },   onLoad: async function () {     let imageSrc = './1.jpg';     let imageInfo = await this.getImageInfo(imageSrc);     let r = 2.165914247136675;     let canvasWidth = Math.abs(imageInfo.width / r);     let canvasHeight = Math.abs(imageInfo.height / imageInfo.width*canvasWidth);     this.setData({       canvasWidth,       canvasHeight     },async ()=>{       let {         canvas,         context       } = await this.initCanvas('#myCanvas', 1);       let img = await this.createImage(canvas, imageSrc);       context.drawImage(img, 0, 0, imageInfo.width, imageInfo.height, 0, 0, canvasWidth, canvasHeight)          let src = await wx.canvasToTempFilePath({         x: 0,         y: 0,         width:canvasWidth,         height:canvasHeight,         destWidth:canvasWidth,         destHeight:canvasHeight,         canvas,         success:(res)=>{           this.setData({             imageSrc:res.tempFilePath           })         }       })     })   },   getImageInfo(src) {     return new Promise(async (resolve, reject) => {       wx.getImageInfo({         src,         success: (result) => {           resolve(result);         },         fail: (e) => {           reject(e);         }       });     });   },   initCanvas(selector, dpr) {     return new Promise((resolve, reject) => {       wx.createSelectorQuery()         .select(selector)         .fields({           node: !0,           size: !0         })         .exec((res) => {           let canvasWidth = res[0].width;           let canvasHeight = res[0].height;           let canvas = res[0].node;           let context = canvas.getContext('2d');           canvas.width = canvasWidth * dpr;           canvas.height = canvasHeight * dpr;           context.scale(dpr, dpr);           resolve({             context,             canvas,             canvasWidth,             canvasHeight           });         });     });   },   createImage(ctxNode, imageSrc) {     return new Promise((resolve, reject) => {       const img = ctxNode.createImage();       img.src = imageSrc;       img.onload = () => {         resolve(img);       };     });   } }) drawImage这一步是正常的，就是canvasToTempFilePath的时候发生了裁剪

微信版本： 8.0.18 基础库：2.16.1 机型：Iphone 13 pro max、iPhone 7 可复现的代码片段：https://developers.weixin.qq.com/s/tZmC1Wm57rwO canvasToTempFilePath导出图片被裁剪 [图片] 真机和安卓测试正常： [图片] 视频地址： 链接：https://pan.baidu.com/s/1sm1vtw5XbbCraovbSoWBsQ  提取码：79si 视频中是用IPhone 7进行测试，多次点击了重新打开小程序，最后一次操作时，发生了裁剪。