日志打印类

必须声明对象为全局对象，且只能有一个对象。(多对象会在日后改进)

主要功能：

1、在指定目录下生成带日期通配符的日志文件。

2、可设置日志大小，超过大小可分成子日志。

3、WriteData函数可像CString的format一样操作。

4、程序在崩溃时可打印崩溃代码，以及崩溃时的堆栈信息。-Log Print category

Object must be declared as global objects, and only one object. (Multi-object improvements in the future)

Main features:

1, the date in the specified directory with wildcard log file generation.

2, you can set the log size exceeds the size can be divided into sub-logs.

3, WriteData functions can operate the same as the CString format.

4, the program crashes during a crash can be printed code, and stack information when it crashed.