void SPI_FLASH_PAGEWrite（u8 *pBuffer，u32 WriteAddr，u16 NumByteToWrite）{SPI_FLASH_WriteEnable（）；
SPI_FLASH_CS_LOW;
SPI_FLASH_SendByte(W25_PageProgram);
SPI_FLASH_SendByte((WriteAddr&0xFF0000)>>16);
... ...



}