uglygirl 2019-04-20
下表列出了所有的Python语言的支持位运算符。假设变量a持有60和变量b持有13,则:
示例:
试试下面的例子就明白了所有的Python编程语言提供了位运算符:
#!/usr/bin/python a = 60 # 60 = 0011 1100 b = 13 # 13 = 0000 1101 c = 0 c = a & b; # 12 = 0000 1100 print "Line 1 - Value of c is ", c c = a | b; # 61 = 0011 1101 print "Line 2 - Value of c is ", c c = a ^ b; # 49 = 0011 0001 print "Line 3 - Value of c is ", c c = ~a; # -61 = 1100 0011 print "Line 4 - Value of c is ", c c = a << 2; # 240 = 1111 0000 print "Line 5 - Value of c is ", c c = a >> 2; # 15 = 0000 1111 print "Line 6 - Value of c is ", c
当执行上面的程序它会产生以下结果:
Line 1 - Value of c is 12 Line 2 - Value of c is 61 Line 3 - Value of c is 49 Line 4 - Value of c is -61 Line 5 - Value of c is 240 Line 6 - Value of c is 15
responseType: ‘arraybuffer‘, //ArrayBuffer涉及面比较广,我的理解是ArrayBuffer代表内存之中的一段二进制数据,一旦生成不能再改。可以通过视图进行操作。