文章目录
简单图形绘制

            
            
              python
              
              
            
          
          import math
import sys
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.
# length = 4
# c = "R"
length = int(input())
c = input()
for i in range(length):
    n_k = length - 1 - i
    print(" " * n_k + c)
    # 对称下半面 0 3
for i in range(length - 1):
    n_k = i + 1
    print(" " * n_k + c)或者分三种(作者:SupercraftD)
            
            
              python
              
              
            
          
          import math
import sys
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.
# length = int(input())
# c = input()
length = 4
c = "R"
rows = []
# 这里row构建出来['   R', '  R', ' R']
for i in range(1, length):
    rows.append(" " * (length - i) + c)
# 然后解包为参数,设置参数之间以\n分隔,构成
#    R
#   R
#  R
print(*rows, sep="\n")
# 单独输出一个
# R
print(c)
# 倒序输出
#  R
#   R
#    R
print(*rows[::-1], sep="\n")
判断


不推荐第一种写法
            
            
              python
              
              
            
          
          import math
import sys
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.
n = int(input())
for i in range(1, n + 1):
    if i % 3 == 0 and i % 5 == 0 and i % 4 == 0:
        print("FizzBuzzBar")
    if i % 3 == 0 and i % 4 == 0 and i % 5 != 0:
        print("FizzBar")
    if i % 5 == 0 and i % 4 == 0 and i % 3 != 0:
        print("BuzzBar")
    if i % 5 == 0 and i % 3 == 0 and i % 4 != 0:
        print("FizzBuzz")
    if i % 3 == 0 and i % 4 != 0 and i % 5 != 0:
        print("Fizz")
    if i % 5 == 0 and i % 3 != 0 and i % 4 != 0:
        print("Buzz")
    if i % 4 == 0 and i % 3 != 0 and i % 5 != 0:
        print("Bar")
    if i % 3 != 0 and i % 4 != 0 and i % 5 != 0:
        print(i)没必要这样写,观察结果
            
            
              python
              
              
            
          
          n = int(input())
for i in range(1, n + 1):
    output = ""
    if i % 3 == 0:
        output += "Fizz"
    if i % 5 == 0:
        output += "Buzz"
    if i % 4 == 0:
        output += "Bar"
    if output == "":
        output = str(i)
    
    print(output)数字的个数

            
            
              python
              
              
            
          
          import sys
import math
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.
n = int(input())
for i in range(n):
    row = input()
    # 检测里面的字符是数字的个数
    print(sum(c.isdigit() for c in row))中间字符

            
            
              python
              
              
            
          
          import sys
import math
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.
s = input().split()
if len(s) %2 != 0:
    print(s[len(s)//2])
else:
    # 012 345  6//2=3
    print( s[len(s)//2-1]+ s[len(s)//2]   )