kmp算法实现，使用java实现，代码经过调试，绝对高效率，正确和可靠-KMP algorithm, using java achieved through debugging code, the absolute high efficiency, correct and reliable

p" 浮点数基本运算 浮点数的基本运算中有加、减、乘、除、取负、绝对值、相等比好啊(The basic operations of floating point number of floating point number are added, subtraction, multiplication, division, negative, absolute and equal ratio in the basic operation of the floating point nu