파이썬 - 숫자를 문자열로 만들기 (01,02..., 001,002)
1) str.zfill(width) str(1).zfiil(2) # '01' str(2).zfiil(2) # '02' ... str(1).zfill(3) # '001' ... 2) rjust(width, [fillchar]) "1".rjust(3, '0') # '001' "1".rjust(3, 'a') # 'aa1' ... 3) print print ("%03d"% 1) # '001' ... print (format(1, '02')) # '01' ...