Question

我只能打印星星，但没有数字逻辑。

userInput = int(input("Please input side length of diamond: "))

if userInput > 0:
    for i in range(userInput):
        for s in range(userInput -3, -2, -1):
            print(" ", end="")
        for j in range(i * 2 -1):
            print("*", end="")
        print()
    for i in range(userInput, -1, -1):
        for j in range(i * 2 -1):
            print("*", end="")
        print()

Answer 1

您应该使用一些工具，例如str.center，map，str.join，itertools.chain：

from itertools import chain

def up_and_down(n):  # 1,2, ..., n, ..., 2, 1
    return chain(range(1, n), range(n, 0, -1))

def diamond(n):
    for i in up_and_down(n):
        print((n-i)*' ', *up_and_down(i), sep='') 
        # or more performant
        # print(''.join(map(str, up_and_down(i))).center(2*n-1))

>>> diamond(5)
    1    
   121   
  12321  
 1234321 
123454321
 1234321 
  12321  
   121   
    1

Answer 2

对于范围 (1,6) 中的 i：

for j in range(6-i):
    print(" ", end=" ")

for k in range(1,i):
    print(k, end = " ")

for l in range(i, 0, -1):
    print(l, end= " ")


print()

对于范围 (4,0,-1) 中的 i：对于范围内的 j（6-i）：打印(" ", end="")

for k in range(1,i):
    print(k, end = " ")

for l in range(i, 0, -1):
    print(l, end= " ")
print()

在python中打印一个数字菱形

2 个答案: