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ESP_LOGI(TAG, "Renaming file"); if (rename("/spiffs/hello.txt", "/spiffs/foo.txt") != 0) { ESP_LOGE(TAG, "Rename failed"); return; } //打开重命名的文件并读取 ESP_LOGI(TAG, "Reading file"); f = fopen("/spiffs/foo.txt", "r"); if (f == NULL) { ESP_LOGE(TAG, "Fai...
Reading JSON input To read JSON input one has to create a parser that will call a given callback for every decoded JSON document inside the stream. There are flags that control the behaviour of the parser (they can be combined with binary or): ...
libspng - A simpler interface for reading and writing PNG files. BSD-2-Clause libvips - Image processing library. LGPL-2.1-or-later libxmi - Function library for rasterizing 2D vector graphics. GPL-3.0-or-later lightmapper - Single-file library for lightmap baking, using an existing OpenGL re...
JSON简介 JSON是一种轻量级的数据交换格式,具有良好的可读性和可扩展性。它以键值对的形式存储数据,支持多种数据类型,如字符串、数字、布尔值、数组和对象。以下是一个简单的JSON示例: {"name":"John","age":30,"city":"New York","hobbies":["reading","coding","traveling"]} ...
1、make 与 makefile 2、Makefile规则 3、文件时间戳、自动推导和模式匹配 4、变量、函数与其他应用 5、CMake 6、CMake 基础操作 7、CMake 构建实例 四、JSON 1、JSON认识 2、JSON 应用 五、Docker 1、Docker 介绍 2、Docker 安装 3、Docker 使用 六、Git/GitHub 1、Git/GitHub 介绍 2、Git 打包上传代...
用于访问基于 REST 的服务,从 Windows Vista、 Windows 7、 Windows 8、 Windows 应用商店的应用程序,通过提供异步绑定到 HTTP,JSON,XML,Uri,Linux 上的本机代码支持,等等。 Visual Studio 扩展 SDK 允许 Windows 应用商店的应用程序中的 SDK 的消费。
Sets the callback for reading a friend request. TIMSetFriendBlackListAddedCallback Sets the callback for adding a friend to the blocklist. TIMSetFriendBlackListDeletedCallback Sets the callback for removing a friend from the blocklist. TIMSetFriendGroupCreatedCallback Sets the callback for frien...
//json文件使用data来读取 NSData *data = [NSData dataWithContentsOfFile:path]; /*方法参数的简单描述 NSJSONReadingMutableContainers = (1UL << 0), 容器是可变的 NSJSONReadingMutableLeaves = (1UL << 1), 叶子是可变的 NSJSONReadingAllowFragments = (1UL << 2) 允许顶级节点既不是数组也不是...
Access violation reading location 0xcccccccc Accessing managed code from native C++ application accessing vs $macros (i.e. $(SolutionDir)) from c++ source code Activating Console in C++ application Activation context generation failed for "MFC80.DLL".Error Add a Time Delay without Pausing other Pro...