# Functions
BufferWFile TODO:if fileExist execute create else append content:[]string filename:AbsolutePath or RelativePathgo:generate stringer -type=string.
ConnectMysql Mysql Select data.
CpuProfile 工具形应用主要使用 runtime/pprof 库，将画像数据写入文件中。.
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ReadFile 将文件整个读入内存.
ReadIoFile 🌟将文件整个读入内存，效率比较高，占用内存也最高。.