# 九九乘法表

for i in range(1, 10):

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   for j in range(1, i+1):

    print('{}x{}={}\t'.format(j, i, i*j), end='')

   print()

#三角形

for i in range(10):
    for j in range(0,i):
        print("-",end=" ")

    for j in range(i,10):
        print("$", end=" ")

    print("")

print("-------------------------")

for i in range(10):
    for j in range(0, 10 - i):
        print("-", end=" ")
    for k in range(10 - i, 10):
        print("$", end=" ")

    print("")
打印上三角,只需要将"-"去掉
for i in range(10):
    for j in range(0, 10 - i):
        print(end=" ")
    for k in range(10 - i, 10):
        print("$", end=" ")

    print("")
打印倒三角,只需要将"-",去掉
for i in range(10):
    for j in range(0,i):
        print(end=" ")

    for j in range(i,10):
        print("$", end=" ")

    print("")

 

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