文件名称：cJSON-master.zip
文件大小：450KB
文件格式：ZIP
更新时间：2023-04-17 03:04:55
cJSON
cJSON源码，为c语言编写，里面含有测试案例,需要用的自取。可以创建json字符串。 ## Usage ### Welcome to cJSON. cJSON aims to be the dumbest possible parser that you can get your job done with. It's a single file of C, and a single header file. JSON is described best here: http://www.json.org/ It's like XML, but fat-free. You use it to move data around, store things, or just generally represent your program's state. As a library, cJSON exists to take away as much legwork as it can, but not get in your way. As a point of pragmatism (i.e. ignoring the truth), I'm going to say that you can use it in one of two modes: Auto and Manual. Let's have a quick run-through. I lifted some JSON from this page: http://www.json.org/fatfree.html That page inspired me to write cJSON, which is a parser that tries to share the same philosophy as JSON itself. Simple, dumb, out of the way. ### Building There are several ways to incorporate cJSON into your project. #### copying the source Because the entire library is only one C file and one header file, you can just copy `cJSON.h` and `cJSON.c` to your projects source and start using it. cJSON is written in ANSI C (C89) in order to support as many platforms and compilers as possible. #### CMake With CMake, cJSON supports a full blown build system. This way you get the most features. CMake with an equal or higher version than 2.8.5 is supported. With CMake it is recommended to do an out of tree build, meaning the compiled files are put in a directory separate from the source files. So in order to build cJSON with CMake on a Unix platform, make a `build` directory and run CMake inside it. ``` mkdir build cd build cmake .. ``` This will create a Makefile and a bunch of other files. You can then compile it: ``` make ``` And install it with `make install` if you want. By default it installs the headers `/usr/local/include/cjson` and the libraries to `/usr/local/lib`. It also installs files for pkg-config to make it easier to detect and use an existing installation of CMake. And it installs CMake config files, that can be used by other CMake based projects to discover the library. You can change the build process with a list of different options that you can pass to CMake. Turn them on with `On` and off with `Off`: * `-DENABLE_CJSON_TEST=On`: Enable building the tests. (on by default) * `-DENABLE_CJSON_UTILS=On`: Enable building cJSON_Utils. (off by default) * `-DENABLE_TARGET_EXPORT=On`: Enable the export of CMake targets. Turn off if it makes problems. (on by default) * `-DENABLE_CUSTOM_COMPILER_FLAGS=On`: Enable custom compiler flags (currently for Clang, GCC and MSVC). Turn off if it makes problems. (on by default) * `-DENABLE_VALGRIND=On`: Run tests with [valgrind](http://valgrind.org). (off by default) * `-DENABLE_SANITIZERS=On`: Compile cJSON with [AddressSanitizer](https://github.com/google/sanitizers/wiki/AddressSanitizer) and [UndefinedBehaviorSanitizer](https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html) enabled (if possible). (off by default) * `-DENABLE_SAFE_STACK`: Enable the [SafeStack](https://clang.llvm.org/docs/SafeStack.html) instrumentation pass. Currently only works with the Clang compiler. (off by default) * `-DBUILD_SHARED_LIBS=On`: Build the shared libraries. (on by default) * `-DBUILD_SHARED_AND_STATIC_LIBS=On`: Build both shared and static libraries. (off by default) * `-DCMAKE_INSTALL_PREFIX=/usr`: Set a prefix for the installation. * `-DENABLE_LOCALES=On`: Enable the usage of localeconv method. ( on by default ) * `-DCJSON_OVERRIDE_BUILD_SHARED_LIBS=On`: Enable overriding the value of `BUILD_SHARED_LIBS` with `-DCJSON_BUILD_SHARED_LIBS`. If you are packaging cJSON for a distribution of Linux, you would probably take these steps for example: ``` mkdir build cd build cmake .. -DENABLE_CJSON_UTILS=On -DENABLE_CJSON_TEST=Off -DCMAKE_INSTALL_PREFIX=/usr make make DESTDIR=$pkgdir install ``` On Windows CMake is usually used to create a Visual Studio solution file by running it inside the Developer Command Prompt for Visual Studio, for exact steps follow the official documentation from CMake and Microsoft and use the online search engine of your choice. The descriptions of the the options above still generally apply, although not all of them work on Windows. #### Makefile **NOTE:** This Method is deprecated. Use CMake if at all possible. Makefile support is limited to fixing bugs. If you don't have CMake available, but still have GNU make. You can use the makefile to build cJSON: Run this command in the directory with the source code and it will automatically compile static and shared libraries and a little test program (not the full test suite). ``` make all