temp+=(u8)((GPIO_ReadInputData(GPIOB)&0X0038)＞＞2)

& 0x00FF0000) >> 16);

This line of code reads the input data from GPIOB pins 16-23 and stores it in a temporary variable called "temp".

Here's a breakdown of what's happening:

- GPIO_ReadInputData(GPIOB): This function reads the input data from GPIOB.
- (GPIO_ReadInputData(GPIOB) & 0x00FF0000): We bitwise AND the input data with 0x00FF0000 to mask out all bits except pins 16-23 (remember that 0x00FF0000 is a hexadecimal value that represents binary 00000000111111110000000000000000).
- >> 16: We shift the masked data right by 16 bits to align it with the least significant bit.
- (u8): Finally, we cast the result to an 8-bit unsigned integer type and store it in "temp".

Overall, this line of code is useful for reading the state of specific pins on GPIOB and using that data for further processing in the program.