python 的99乘法表

a = 1
n = 1
for a in range(1, 10):
    for n in range(1, 10):
        if n>a:
            continue
        c = a * n
        print("%d*%d=%2d" % (a, n, c), end=" ")
    print()

　　

print("\n".join("\t".join(["%s*%s=%s" %(x,y,x*y) for y in range(1, x+1)]) for x in range(1, 10)))