这个是windows上源码编译opencv+opencv-contrib时候cmake时候缓存文件，只需要将压缩文件夹解压到源码目录下面,cmake-gui上configure时候就不会报错，注意解压后文件夹名字是.cache,文件夹名字不能改变，比如opencv/.cache，有的人解压后成opencv/.cache/.cache是错误的，请仔细检查文件夹名字和是否嵌套情况。这样就能保证cmake成功，最后点击generate即可生成opencv的C++项目接着编译即可。
opencv-4.9.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88841143
opencv-4.8.1-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88557638
opencv-4.8.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360225
opencv-4.7.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360228
opencv-4.6.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360232
opencv-4.5.5cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360234
opencv-4.5.4-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360235
opencv4.5.3-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360237
opencv-4.5.2-cache-win.zip下载地址：https://download.csdn.net/download/FL1623863129/88360238
opencv-4.4.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360240
opencv4.3.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360295
opencv-4.2.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360297
opencv4.1.1-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360302
opencv-4.1.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360304
opencv-4.0.0-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360306
opencv3.4.9-cache-win.zip下载地址：https://download.csdn.net/download/FL1623863129/88360307
opencv-3.4.4-cache.zip下载地址：https://download.csdn.net/download/FL1623863129/88360309