python2 随机数列生成器

#filename:randNumber.py

import random

while True:

    try:

        row=int(raw_input('Enter the rows:'))

        cols=int(raw_input('then Enter the cols:'))

        minNum=int(raw_input('then Enter the minNumber:'))

        maxNum=int(raw_input('then Enter the maxNumber:'))

         

        r=0

        while r<row:

            line=''

            c=0

            while c<cols:

                s=random.randint(minNum,maxNum)

                line+=str(s)

                line+='    '

                c+=1

            r+=1

            print(line)

             

    except ValueError as err:

        print err