我有这个问题，因为我找不到适当的解决方案。
在网站上，我正在尝试使用代码更改个人资料图片。有“上传”按钮，可以打开selectfiledialog。
当我尝试通过document.getElementsbytagname（“输入”）找到输入标签时，它找不到上传的任何输入。 （所以我不能只做element.sendkeys（）），
当我选择对话框中的文件时，它可以使用这种方式，然后网站将其转换为数据URI并将其设置为＆lt; img＆gt; src +它设置样式=变换：矩阵（values params）
所以我找到了这个解决方案，它将图像转换为数据URI并将其设置为 src 参数像网站一样。我还计算矩阵参数值。
我的问题是，当我稍后单击“保存”按钮时，由于某种原因，网站重置我的CSS样式，然后在我更改 src 的情况下将图片保存不良
（以前的Avatar中保留了Transform样式保留）
这就是我通过上传按钮上传手动时的外观，否则我可以matrix（）值
但是当我单击“保存”按钮时，它会像第一张图片一样保存，就像它不会在我的矩阵中计数（ ）值。我可以以某种方式进入保存按钮函数并在我的matrix（）编辑中强制强制吗？还是在不按按钮的情况下模拟上传功能？
时，如何处理硒中的selectfiledialog
- 或者，当没有＆lt ;输入＆gt;在html代码中，
- 我不能使用system.windows.forms.sendkeys.sendwait（path）;
我还尝试使用autoitx，但是我的项目中的库遇到了一些问题，如果可能的话，我想在没有库的情况下处理它。
非常感谢您的所有答案:)
**编辑
我找到了其中包含代码的.js文件，但是我不知道如何调用例如在方法图像 javaScript的代码
I have this problem for I can't find proper solution.
On website trovo.live I'm trying to change profile picture with code. There is 'Upload' button, which opens SelectFileDialog.
When I try to find input tag via document.getElementsByTagName("input") it doesn't find any input for uploading. (So I can't just do element.SendKeys() )
It works this way, when I select file in dialog then website converts it into data URI and set it as < img > src + it sets style = transform: matrix(values params)
So I found this solution that I convert image into data URI and set it as src parameter like website do it. Also I calculate matrix parameter values.
My problem is when I click save button later, website for some reason resets my css style and then picture is saved with bad positioning
After I change src by code (transform style remains from previous avatar)
This is how it looks when I upload manualy by Upload button or I can matrix() values 
But when I click save button, it saves like that first picture, like it wouldn't count in my matrix() values. Can I somehow get into save button function and force in my matrix() edit? Or simulate Upload function without pressing button?
Or how can I handle selectFileDialog in selenium when
- No < input > in HTML code
- I can't use System.Windows.Forms.SendKeys.SendWait(path);
I also tried to use AutoItX, but I had some problems with their library in my project and I would like to handle it without libraries if possible.
Thank you very much for all answers :)
**edit
I found .js file which contains code for it, but I have no idea how to call for example method for resizing on method image code for javascript
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