Python3 位运算符 Python3 字典 Copy 方法 Python3 字典 Fromkeys Python3 位运算符 #!/usr/bin/python3 a = 60 # 60 = 0011 1100 b = 13 # 13 = 0000 1101 print ('a=',a,':',bin(a),'b=',b,':',bin(b)) c = 0 c = a & b; # 12 = 0000 1100 print ("result of AND is ", c,':',bin(c)) c = a | b; # 61 = 0011 1101 print ("result of OR is ", c,':',bin(c)) c = a ^ b; # 49 = 0011 0001 print ("result of EXOR is ", c,':',bin(c)) c = ~a; # -61 = 1100 0011 print ("result of COMPLEMENT is ", c,':',bin(c)) c = a << 2; # 240 = 1111 0000 print ("result of LEFT SHIFT is ", c,':',bin(c)) c = a >> 2; # 15 = 0000 1111 print ("result of RIGHT SHIFT is ", c,':',bin(c)) Python3 字典 Copy 方法 Python3 字典 Fromkeys