Python编程 输出九九乘法表

环境信息

• ModelArts
  • CodeLab
    • Notebook - Pytorch-1.0.0

输出九九乘法表

第一种方式

# 最终的数值是9
end_num = 9

# 行计数器
row = 1
while row <= end_num:
    col = 1
    while col <= row:
        print("%d * %d = %d" % (row, col, row * col), end="  ")
        col += 1
    print("")
    row += 1

1 * 1 = 1  
2 * 1 = 2  2 * 2 = 4  
3 * 1 = 3  3 * 2 = 6  3 * 3 = 9  
4 * 1 = 4  4 * 2 = 8  4 * 3 = 12  4 * 4 = 16  
5 * 1 = 5  5 * 2 = 10  5 * 3 = 15  5 * 4 = 20  5 * 5 = 25  
6 * 1 = 6  6 * 2 = 12  6 * 3 = 18  6 * 4 = 24  6 * 5 = 30  6 * 6 = 36  
7 * 1 = 7  7 * 2 = 14  7 * 3 = 21  7 * 4 = 28  7 * 5 = 35  7 * 6 = 42  7 * 7 = 49  
8 * 1 = 8  8 * 2 = 16  8 * 3 = 24  8 * 4 = 32  8 * 5 = 40  8 * 6 = 48  8 * 7 = 56  8 * 8 = 64  
9 * 1 = 9  9 * 2 = 18  9 * 3 = 27  9 * 4 = 36  9 * 5 = 45  9 * 6 = 54  9 * 7 = 63  9 * 8 = 72  9 * 9 = 81  

第二种方式

# 最终的数值是9
end_num = 9

# 行计数器
row = 1
while row <= end_num:
    col = 1
    while col <= row:
        if col == row:
            # 每行最后一项的end，不用加空格了
            print("%d * %d = %d" % (row, col, row * col), end="")
        else:
            print("%d * %d = %d" % (row, col, row * col), end="  ")
        col += 1
    print("")
    row += 1

1 * 1 = 1
2 * 1 = 2  2 * 2 = 4
3 * 1 = 3  3 * 2 = 6  3 * 3 = 9
4 * 1 = 4  4 * 2 = 8  4 * 3 = 12  4 * 4 = 16
5 * 1 = 5  5 * 2 = 10  5 * 3 = 15  5 * 4 = 20  5 * 5 = 25
6 * 1 = 6  6 * 2 = 12  6 * 3 = 18  6 * 4 = 24  6 * 5 = 30  6 * 6 = 36
7 * 1 = 7  7 * 2 = 14  7 * 3 = 21  7 * 4 = 28  7 * 5 = 35  7 * 6 = 42  7 * 7 = 49
8 * 1 = 8  8 * 2 = 16  8 * 3 = 24  8 * 4 = 32  8 * 5 = 40  8 * 6 = 48  8 * 7 = 56  8 * 8 = 64
9 * 1 = 9  9 * 2 = 18  9 * 3 = 27  9 * 4 = 36  9 * 5 = 45  9 * 6 = 54  9 * 7 = 63  9 * 8 = 72  9 * 9 = 81

第三种方式

# 最终的数值是9
end_num = 9

# 行计数器
row = 1
while row <= end_num:
    # 列计数器
    col = 1
    
    while col <= row:
        
        if col == row:
            # 每行最后一项的end，不用加空格了
            print("%d * %d = %d" % (row, col, row * col), end="")
        else:
            if (row == 3 or row == 4) and (col == 2):
                # 第三行、第四行的第二列多加一个空格
                print("%d * %d = %d" % (row, col, row * col), end="   ")
            else:
                print("%d * %d = %d" % (row, col, row * col), end="  ")
        col += 1
        
    print("")
    row += 1

1 * 1 = 1
2 * 1 = 2  2 * 2 = 4
3 * 1 = 3  3 * 2 = 6   3 * 3 = 9
4 * 1 = 4  4 * 2 = 8   4 * 3 = 12  4 * 4 = 16
5 * 1 = 5  5 * 2 = 10  5 * 3 = 15  5 * 4 = 20  5 * 5 = 25
6 * 1 = 6  6 * 2 = 12  6 * 3 = 18  6 * 4 = 24  6 * 5 = 30  6 * 6 = 36
7 * 1 = 7  7 * 2 = 14  7 * 3 = 21  7 * 4 = 28  7 * 5 = 35  7 * 6 = 42  7 * 7 = 49
8 * 1 = 8  8 * 2 = 16  8 * 3 = 24  8 * 4 = 32  8 * 5 = 40  8 * 6 = 48  8 * 7 = 56  8 * 8 = 64
9 * 1 = 9  9 * 2 = 18  9 * 3 = 27  9 * 4 = 36  9 * 5 = 45  9 * 6 = 54  9 * 7 = 63  9 * 8 = 72  9 * 9 = 81

第四种方式

# 最终的数值是9
end_num = 9

# 行计数器
row = 1
while row <= end_num:
    # 列计数器
    col = 1

    while col <= row:
        # 使用转义字符\t,制表符,垂直方向上对齐，很好用
        print("%d * %d = %d" % (row, col, row * col), end="\t")
        col += 1

    print("")
    row += 1

1 * 1 = 1	
2 * 1 = 2	2 * 2 = 4	
3 * 1 = 3	3 * 2 = 6	3 * 3 = 9	
4 * 1 = 4	4 * 2 = 8	4 * 3 = 12	4 * 4 = 16	
5 * 1 = 5	5 * 2 = 10	5 * 3 = 15	5 * 4 = 20	5 * 5 = 25	
6 * 1 = 6	6 * 2 = 12	6 * 3 = 18	6 * 4 = 24	6 * 5 = 30	6 * 6 = 36	
7 * 1 = 7	7 * 2 = 14	7 * 3 = 21	7 * 4 = 28	7 * 5 = 35	7 * 6 = 42	7 * 7 = 49	
8 * 1 = 8	8 * 2 = 16	8 * 3 = 24	8 * 4 = 32	8 * 5 = 40	8 * 6 = 48	8 * 7 = 56	8 * 8 = 64	
9 * 1 = 9	9 * 2 = 18	9 * 3 = 27	9 * 4 = 36	9 * 5 = 45	9 * 6 = 54	9 * 7 = 63	9 * 8 = 72	9 * 9 = 81