很不错的代码行统计工具源代码，希望对大家有用-Very good lines of code statistics tool for source code, in the hope that useful to everybody

能够简单的计算加减乘除，包含括号，符合运算，界面一般，键盘输入。-Math can be a simple calculation, including the brackets, in line operations, the general interface, keyboard input.