99乘法表

在python文件执行：

a = 0 ;
'''
while a <= 9 :
    j= 1
    while j<=a:
        print ("%s * %s = %s\t "%(a,j,a*j),end = "")
        j+=1;
    print("")

    a+=1;

'''
a  = 0 ;

while a <=9 :
    b=1;
    while b<=a :
        print ("{a}*{b}={ab}\t".format(a=a,b=b,ab=a*b),end="")
        b+=1;
    print("")
    a+=1