Shift Operator

作者: 坠入莱茵河 | 来源:发表于2017-05-08 18:35 被阅读0次

按位操作符

逻辑移位均补0
算术移位左移补0
右移正数补1 负数补0
看左数第一位

x	x << 3	logical x >> 2	arithmetic x >> 2
hex binary 10	binary hex 10	binary hex 10	binary hex 10
0xC3 10100011	00011000 0x18	00101000 0x28	11101000 0xE8
0x75 01110101	10101000 0xA8	00011101 0x1D	00011101 0x1D
0x87 10000111	00111000 0x38	00100001 0x21	11100001 0xE1
0x66 01010101	10101000 0xA8	00010101 0x15	00010101 0x15

Shift Operator
按位操作符逻辑移位均补0算术移位左移补0右移正数补1 负数补0看左数第一位
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