百度的代码大多都试过了，可是画出来图片还是放行的
```javascript
// 生成海报
createPoster() {
const that = this
return new Promise((resolve, reject) => {
uni.showLoading({
title: '海报生成中'
});
const ctx = uni.createCanvasContext('mycanvas');
ctx.fillRect(0, 0, 751, 1301);
ctx.setFillStyle("#fff");
ctx.fillRect(0, 0, 751, 1301);
// 背景
ctx.drawImage(this.imgurl, 0, 0);
// 二维码
ctx.drawImage(this.qrCodePath, 170, 800, 120, 120);
// 文字样式
ctx.setFontSize(21);
ctx.setFillStyle('#888');
let drawtextList = this.$toolFun.drawtext(this.dataList.userName.toString(), 341);
let textTop = 0;
drawtextList.forEach((item,index) => {
if(index < 2){
textTop = 250 + (index + 1) * 28;
ctx.fillText(item.content, 280, textTop);
}
});
ctx.setFontSize(28);
ctx.setFillStyle('#222');
let drawtextList1 = this.$toolFun.drawtext(this.dataList.nickName, 341);
let textTop1 = 0;
drawtextList1.forEach((item,index) => {
if(index < 2){
textTop1 = 210 + (index + 1) * 28;
ctx.fillText(item.content, 280, textTop1);
}
});
// 绘制圆形图片
function circleImage(img, width, height, x, y){
console.log('绘制圆形图片')
let radius,diameter
//以最短的边为半径绘制圆
if(width > height){
radius = height / 2;
} else {
radius = width / 2;
}
diameter = radius * 2;
ctx.save()
ctx.beginPath();
ctx.arc(x + radius, y + radius, radius, 0, Math.PI * 2, false);
ctx.clip();
ctx.strokeStyle="blue";
ctx.drawImage(img.path, x, y, diameter, diameter);
ctx.stroke();
}
// 头像
uni.downloadFile({
url: this.imgHost + this.dataList.avatar,
success: res => {
if (res.statusCode === 200) {
console.log(res, '图片')
console.log('ctx', ctx)
//绘制圆形头像
uni.getImageInfo({
src: res.tempFilePath,
})
.then((img) => {
console.log(img)
// if (img[1].errMsg == "getImageInfo:ok") {
// let { width, height } = img[1];
// // circleImage(img[1],322,322,215,56)
// }
circleImage(img[1], 80, 80, 170, 200)
ctx.draw(true, () => {
uni.canvasToTempFilePath({
canvasId: 'mycanvas',
width: 751,
height: 1301,
success: res => {
uni.hideLoading();
resolve(res.tempFilePath);
},
fail: err => {
uni.hideLoading();
reject(err);
}
})
})
})
// ctx.drawImage(res.tempFilePath, 170, 200, 80, 80)
}
}
})
})
},
