九九乘法表

# 九九乘法表：列*行= 结果
j = 1  # 控制行数
while j<10:
    i = 1  # 控住列数
    while i<= j:
        print(i,"x",j,"=",i*j,end="\t")
        # print(f"{i}*{j}={i*j}",end='\t')
        i += 1
    print()
    j += 1   

for i in range(1, 10):
    for j in range(1, i+1):
        print('{}x{}={}\t'.format(j, i, i*j), end='')
    print()