位運(yùn)算符的運(yùn)算規(guī)則 按位運(yùn)算符是怎么運(yùn)算的?
按位運(yùn)算符是怎么運(yùn)算的?首先,二進(jìn)制和運(yùn)算規(guī)則:1& 1=1 1& 0=0 0 0& 0=0二進(jìn)制或運(yùn)算規(guī)則:1 | 1=1 1 | 0=1 0 | 0=0再次:二進(jìn)制和十進(jìn)制轉(zhuǎn)換:
按位運(yùn)算符是怎么運(yùn)算的?
首先,二進(jìn)制和運(yùn)算規(guī)則:1& 1=1 1& 0=0 0 0& 0=0二進(jìn)制或運(yùn)算規(guī)則:1 | 1=1 1 | 0=1 0 | 0=0再次:二進(jìn)制和十進(jìn)制轉(zhuǎn)換:不能超過2的n次方,所以我們必須用示例來解釋:1111 1111=128*1 64*1 32*1 16*1 8*1 4*1 2*1 1 1 1 10000=128*0 64*0 32*0 16*0 8*0 4*0 2*0 1*0 15=二進(jìn)制:(0000 1111)127=二進(jìn)制:(1111)按位and nature is(0000 1111)=15 128=二進(jìn)制:(0001 0000 0000)127=二進(jìn)制:(0000 1111 1111)(高位填充0)按位OR(0001 1111 1111)=255按位求和是從高到低逐位執(zhí)行“與”運(yùn)算,因此從高到低,15& 127:15=二進(jìn)制:(0000 1111)127=二進(jìn)制:(1111 1111)0000 1111注:“and”運(yùn)算規(guī)則:1& 1=1,1& 0=0,0& 0=0
首先,二進(jìn)制和運(yùn)算規(guī)則:1& 1=1,1& 0=0,0& 0=0,二進(jìn)制或運(yùn)算規(guī)則:1 | 1=1 1 | 0=1 0 | 0=0再次:二進(jìn)制和十進(jìn)制轉(zhuǎn)換:不能超過2的n次方,所以我們要用例子來解釋:1111111=128*164*132*116*18*14*12*112*0110000=128*064*032*016*08X4*012*015=Binary:(0000 1111)127=Binary:(1111111)自然是(0000 1111)=15128=Binary:(00010000)(0000)127=Binary:(0000 1111111)(高位用0)按位OR(0001 1111 1111)=255回答:二進(jìn)制“和”運(yùn)算規(guī)則:1& 1=1 1& 0=0 0& 0=0二進(jìn)制“或”運(yùn)算規(guī)則:1 | 1=1 1 1 | 0=1 0 | 0=0按位and“從高到低逐位執(zhí)行運(yùn)算,因此從高到低,15& 127:15=二進(jìn)制:(0000)1111)127=二進(jìn)制:(1111,1111)