build(C): use CMake

Author: ProgramRipper

.gitignore

@@ -0,0 +1,12 @@
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+build

CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.0.0)
+project(CRC32Craker VERSION 0.1.0)
+
+if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+    link_libraries(m)
+endif(CMAKE_SYSTEM_NAME MATCHES "Linux")
+
+
+add_executable(crack main.c)

README.md

@@ -5,10 +5,14 @@
 ## 使用
 
 ```shell
+# Python
 python main.py [crc32hash]
 
-gcc -O3 -o main main.c -lm
-./main [crc32hash]
+# C
+mkdir build
+cmake ..
+make
+./crack [crc32hash]
 ```
 
 ## 鸣谢