binary_shift_right()binary_shift_right()

返回针对一对数字的二进制右移运算。Returns binary shift right operation on a pair of numbers.

binary_shift_right(x,y) 

语法Syntax

binary_shift_right(num1, num2 ) binary_shift_right(num1, num2 )

参数Arguments

  • num1、num2:长整型数字 。num1, num2: long numbers.

返回Returns

返回针对一对数字的二进制右移运算:num1 >> (num2%64)。Returns binary shift right operation on a pair of numbers: num1 >> (num2%64). 如果 n 为负,则返回 NULL 值。If n is negative a NULL value is returned.