I set the width of the picture, and then set the mode= "widthfix", but I found that on some phones, the moment when I first enter the page to load the image, the picture will be pulled very long, and then return to normal. Then if I set the height of the picture to rpx, this would not happen. Because I am used to the highly adaptive writing method of setting only the width of the picture in h5 development, I asked if Mini Program needs to set the height of the picture
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