【发布时间】:2016-07-23 01:46:10
【问题描述】:
我在格式化金字塔时遇到了一些问题。从循环打印时,我尝试使用格式,但这似乎不起作用,只是破坏了程序。格式化输出的不同方法是什么。我遇到的唯一麻烦是当我打印 10 及以上时,当有两位数时。格式化打印输出的最佳方法是什么?我尝试了多种方法,但无法在文档的循环中进行格式化 https://docs.python.org/3.5/library/string.html#formatstrings
这是脚本:
userinput = int(input("Enter the number of lines: " )) # User input of the total number of lines
userinput = userinput + 1 # adding a value of 1 additionally with the user input to make numbers even
for i in range(1, userinput): # Loop through lines from 1 to userinput
for j in range(userinput - i): # printing spaces, 1 at a time from j = 1 to j = userinput - i
print(" ", end = " ")
for j in range(i, 0, -1): # printing number decreasing from the line number j to 1
print(j, end = " ")
for j in range(2,i + 1): # Printing number increasing from 2 to line number j
print(j, end = " ")
print()
j += 1
小于10时的输出
Enter the number of lines: 9
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
6 5 4 3 2 1 2 3 4 5 6
7 6 5 4 3 2 1 2 3 4 5 6 7
8 7 6 5 4 3 2 1 2 3 4 5 6 7 8
9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9
15以上时的输出:
Enter the number of lines: 15
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
6 5 4 3 2 1 2 3 4 5 6
7 6 5 4 3 2 1 2 3 4 5 6 7
8 7 6 5 4 3 2 1 2 3 4 5 6 7 8
9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9
10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10
11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11
12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12
13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13
14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
当我为 10 人及以上预留了额外的空间时,我的输出如下所示:(这些点用于区分空白空间,我所做的只是在打印的开头添加了 " " 引号.
Enter the number of lines: 12
. . . . . . . . . . . . 1
. . . . . . . . . . . 2 1 2
. . . . . . . . . . 3 2 1 2 3
. . . . . . . . . 4 3 2 1 2 3 4
. . . . . . . . 5 4 3 2 1 2 3 4 5
. . . . . . . 6 5 4 3 2 1 2 3 4 5 6
. . . . . . 7 6 5 4 3 2 1 2 3 4 5 6 7
. . . . . 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8
. . . . 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9
. . . 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10
. . 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11
. 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12
这是我尝试通过添加额外空间来更改的内容
for j in range(userinput - i): # printing spaces, 1 at a time from j = 1 to j = userinput - i
print(".", end = " ")
for j in range(i, 0, -1): # printing number decreasing from the line number j to 1
print(" ", j, end = "")
for j in range(2,i + 1): # Printing number increasing from 2 to line number j
print(" ", j, end = "")
for j in range(userinput - i): # printing spaces, 1 at a time from j = 1 to j = userinput - i
print(" ", end = " ")
这是我想要完成的理想输出:
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
6 5 4 3 2 1 2 3 4 5 6
7 6 5 4 3 2 1 2 3 4 5 6 7
8 7 6 5 4 3 2 1 2 3 4 5 6 7 8
9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9
10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10
11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11
12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12
13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13
14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
谢谢!
【问题讨论】:
标签: loops python-3.x for-loop formatting string-formatting