python随机数列生成器的例子

#!/usr/bin/env python
#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