python使用嵌套的for循环

使用嵌套的for循环,定义一个名为print_numbers_triangle (number_of_rows)的函数,该函数接受多个行作为参数。该函数应该打印一个数字三角形,如下面的例子所示。
注意:
•你可以假设整数总是大于1小于10。
你必须使用一个嵌套的for循环来回答这个问题。

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def print_numbers_triangle (number_of_rows):

使用嵌套for循环:

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


print_numbers_triangle(8)



def print_numbers_triangle (number_of_rows):
    for i in range(1,number_of_rows+1):
        num=1
        for j in range(1, (number_of_rows+1) - i):
            print(" ", end=' ')
        for k in range((number_of_rows+1)- i, number_of_rows+1):
            print(num,end=' ')
            num+=1
        print("")
print_numbers_triangle(8)

img

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你题目的解答代码如下:

def print_numbers_triangle (number_of_rows):
    for i in range(1,number_of_rows+1):
        for j in range(number_of_rows-i):
            print(' ', end='')
        for j in range(1,i+1):
            print(j, end='')
        print()

# 以下为测试代码,.不用提交
print_numbers_triangle(8)
print_numbers_triangle(3)

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img

def print_numbers_triangle(number_of_rows):
    for i in range(1, number_of_rows+1):
        print(" " * (number_of_rows - i), end="")
        for j in range(1, i):
            print(j, end="")
        print(i)
print_numbers_triangle(8)
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