tesseract是一款免费的ocr识别开源软件，最早在Linux上i，现在已经有Windows4.0版本了。chi_sim.traineddata是中文字库，解压缩后放在tessdata目录下，可以通过PowerShell使用。(Tesseract is a free OCR recognition open source software. The earliest is I on Linux, and now there is Windows4.0 version. Chi_sim.traineddata is a Chinese font library, which is decompressed and placed in tessdata directory. It can be used by PowerShell.)