twos complement 的最高位The most significant bit (MSB)是符号位,"1"代表负数,n位 twos complement 数是 -2^(n-1) to 2^(n-1)-1: n minimum value maximum 4 -8 7 8 -128 127 12 -2048 20477 20 -524288 524287 以下是 8-bit 的例子: twos complement binary twos complement hex integer...