直接上代码：
这是运行的效果：
主要运用到的知识点：
1、for 循环 for value in in iterable: 包括（字符串|列表|元组|字典|集合）
2、range函数 1 - 9 应写成range(1, 10)
3、print() 函数，这里主要记住的一点，是end这个参数，默认是换行
def cheng():
for i in range(1, 10):
for j in range(1, i + 1):
print(i, '*', j, '=', i * j, end='')
if j >= 1 and j < i:
print(' | ', end='')
else:
print(' ', end='')
j += 1
print('\n', ('=============' * i)[:-4])
i += 1
cheng()
运行效果：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 =================================================================================================================