How to print rhombuses, triangles and rectangles in python using code examples

Recently I encountered a problem during development. I need to use python to realize shapes such as rhombus, triangle and rectangle. I found that there is less information on this aspect on the Internet, so I will summarize and share it. This article mainly introduces to you about using python to print. The relevant information on rhombus, triangle and rectangle is provided. Friends in need can refer to it. Let’s take a look below.

Preface

This article mainly introduces you to the relevant content about using python to print rhombuses, triangles and rectangles, and share it for your reference. Learning, without further ado, let’s take a look at the detailed introduction:

Example code

#coding:utf-8
rows = int(raw_input('输入列数： '))
i = j = k = 1 #声明变量，i用于控制外层循环（图形行数），j用于控制空格的个数，k用于控制*的个数
#等腰直角三角形1
print "等腰直角三角形1"
for i in range(0, rows):
 for k in range(0, rows - i):
  print " * ", #注意这里的","，一定不能省略，可以起到不换行的作用
  k += 1
 i += 1
 print "\n"
 
#打印实心等边三角形
print "打印空心等边三角形，这里去掉if-else条件判断就是实心的"
for i in range(0, rows + 1):#变量i控制行数
 for j in range(0, rows - i):#(1,rows-i)
  print " ",
  j += 1
 for k in range(0, 2 * i - 1):#(1,2*i)
  if k == 0 or k == 2 * i - 2 or i == rows:
   if i == rows:
    if k % 2 == 0:#因为第一个数是从0开始的，所以要是偶数打印*，奇数打印空格
     print "*",
    else:
     print " ", #注意这里的","，一定不能省略，可以起到不换行的作用
   else:
    print "*",
  else:
   print " ",
  k += 1
 print "\n"
 i += 1
 
#打印菱形
print "打印空心等菱形，这里去掉if-else条件判断就是实心的"
for i in range(rows):#变量i控制行数
 for j in range(rows - i):#(1,rows-i)
  print " ",
  j += 1
 for k in range(2 * i - 1):#(1,2*i)
  if k == 0 or k == 2 * i - 2:
   print "*",
  else:
   print " ",
  k += 1
 print "\n"
 i += 1
 #菱形的下半部分
for i in range(rows):
 for j in range(i):#(1,rows-i)
  print " ",
  j += 1
 for k in range(2 * (rows - i) - 1):#(1,2*i)
  if k == 0 or k == 2 * (rows - i) - 2:
   print "*",
  else:
   print " ",
  k += 1
 print "\n"
 i += 1
#实心正方形
print "实心正方形"
for i in range(0, rows):
 for k in range(0, rows):
  print " * ", #注意这里的","，一定不能省略，可以起到不换行的作用
  k += 1
 i += 1
 print "\n"
 
#空心正方形
print "空心正方形"
for i in range(0, rows):
 for k in range(0, rows):
  if i != 0 and i != rows - 1:
   if k == 0 or k == rows - 1:
    #由于视觉效果看起来更像正方形，所以这里*两侧加了空格，增大距离
    print " * ", #注意这里的","，一定不能省略，可以起到不换行的作用
   else:
     print " ", #该处有三个空格
  else:
   print " * ", #这里*两侧加了空格
  k += 1
 i += 1
 print "\n"

Execution output result:

输入列数： 4
等腰直角三角形1
 * * * * 

 * * * 

 * * 

 * 

打印空心等边三角形，这里去掉if-else条件判断就是实心的
  

  * 

 * * 

 *  * 

* * * * 

打印空心等菱形，这里去掉if-else条件判断就是实心的
  

  * 

 * * 

 *  * 

*   * 

 *  * 

 * * 

  * 

实心正方形
 * * * * 

 * * * * 

 * * * * 

 * * * * 

空心正方形
 * * * * 

 *   * 

 *   * 

 * * * *

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