python使用数字打印特定的三角形

def print_inverted_triangle_pattern(number_of_rows):

def print_inverted_triangle_pattern(number_of_rows):
    for i in range(number_of_rows):
        print(str(i+1)*(number_of_rows-i)+' '*i*2+str(i+1)*(number_of_rows-i))

print_inverted_triangle_pattern(5)
print_inverted_triangle_pattern(3)

必须使用嵌套循环啊？稍等

def print_inverted_triangle_pattern(number_of_rows):
    for i in range(number_of_rows):
        for _ in range(number_of_rows-i):
            print(i+1,end='')
        for _ in range(i*2):
            print(' ',end='')
        for _ in range(number_of_rows-i):
            print(i+1,end='')
        print()

def print_inverted_triangle_pattern(number_of_rows):
    n=number_of_rows
    for i in range(2*n):
        print(1,end='')
    print()
    for i in range(1,n):
        for j in range(n-i):
            print(i+1,end='')
        for j in range(i*2):
            print(' ',end='')
        for j in range(n-i):
            print(i+1,end='')
        print()

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