二进制转十进制自右向左乘2的几次方1100001 -> 1*2^0 + 0*2^1 + 0*2^2 + 0*2^3 + 0*2^4 + 1*2^5 + 0*2^6 = 1 + 0 + 0 + 0 + 0 + 32 + 64 = 97
