输出九九乘法表

方法一：for循环

for i in range(1,10):
    for j in range(1,i+1):
        print("%s * %s = %s" %(j,i,j*i),end ="  ")
    print()

方法二：while循环

a = 1
while a <= 9:
    b = 1
    while b <= a:
        print("%s * %s = %s"%(b,a,b*a),end = "   ")
        b +=1
    print()
    a +=1

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原文地址：https://www.cnblogs.com/ff-gaofeng/p/13357955.html