import os,sys # global definition # base = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F] base = [str(x) for x inrange(10)] + [ chr(x) for x inrange(ord('A'),ord('A')+6)] # bin2dec # 二进制 to 十进制: int(str,n=10) defbin2dec(string_num): returnstr(int(string_num, 2)) # hex2dec # 十六进制 to 十进制 defhex2dec(string_num): returnstr(int(string_num.upper(), 16)) # dec2bin # 十进制 to 二进制: bin() defdec2bin(string_num): num = int(string_num) mid = [] whileTrue: if num == 0: break num,rem = divmod(num, 2) mid.append(base[rem]) return''.join([str(x) for x in mid[::-1]]) # dec2hex # 十进制 to 八进制: oct() # 十进制 to 十六进制: hex() defdec2hex(string_num): num = int(string_num) mid = [] whileTrue: if num == 0: break num,rem = divmod(num, 16) mid.append(base[rem]) return''.join([str(x) for x in mid[::-1]]) # hex2tobin # 十六进制 to 二进制: bin(int(str,16)) defhex2bin(string_num): return dec2bin(hex2dec(string_num.upper())) # bin2hex # 二进制 to 十六进制: hex(int(str,2)) defbin2hex(string_num): return dec2hex(bin2dec(string_num))
defdec2oct(num): l = [] if num < 0: return'-' + dec2oct(abs(num)) whileTrue: num, remainder = divmod(num, 8) l.append(str(remainder)) if num == 0: return''.join(l[::-1])
十进制到八进制:
1 2 3 4 5 6 7 8 9
defdec2oct(num): l = [] if num < 0: return'-' + dec2oct(abs(num)) whileTrue: num, remainder = divmod(num, 8) l.append(str(remainder)) if num == 0: return''.join(l[::-1])
十进制到十六进制:
1 2 3 4 5 6 7 8 9 10
base = [str(x) for x inrange(10)] + [ chr(x) for x inrange(ord('A'),ord('A')+6)] defdec2hex(num): l = [] if num < 0: return'-' + dec2hex(abs(num)) whileTrue: num,rem = divmod(num, 16) l.append(base[rem]) if num == 0: return''.join(l[::-1])
defcn(x): return x.decode('utf-8') a=int(raw_input(cn('请输入要转换的数字:'))) b=int(raw_input(cn('请输入要转换的进制:'))) defx(n,k): if k==16: d=n s="" while d!=0: d,f=divmod(d,k) if f==10: f='a' if f==11: f='b' if f==12: f='c' if f==13: f='d' if f==14: f='e' if f==15: f='f' s=str(f)+s return s elif k==2or k==8: d=n s="" while d!=0: d,f=divmod(d,k) s=str(f)+s return s c=x(a,b) print c