python3 打印三角形 python编程打印三角形

1.打印直角三角形

#* 
#* * 
#* * * 
#* * * * 
#* * * * * 

for n in range(5):
	for m in range(n + 1):
    	print("*", end=" ")
    print()

2.打印反直角三角形

#         * 
#       * * 
#     * * * 
#   * * * * 
# * * * * * 

for i in range(5):  
	for n in range(5 - i):
    	print(" ", end=" ")
    for j in range(i + 1):  
        print("*", end=" ")
    print()

3.打印等腰三角形

#         *   
#       *   *   
#     *   *   *   
#   *   *   *   *   
# *   *   *   *   *   

for i in range(5):  
	for n in range(5 - i):
    	print(" ", end=" ")
    for j in range(i + 1):  
        print("*  ", end=" ")
    print()

4.打印奇葩三角形（一）

# * * * * * 
#   * * * * 
#     * * * 
#       * * 
#         * 
#
#         * 
#       * * 
#     * * * 
#   * * * * 
# * * * * * 

for i in range(5):
	for n in range(i + 1):
    	print(" ", end=" ")
    for j in range(5 - i):
        print("*", end=" ")
    print()
print()
for i in range(5):  # 负责行号
    for n in range(5 - i):
        print(" ", end=" ")
    for j in range(i + 1):  # 列的数量
        print("*", end=" ")
    print()

5.打印奇葩三角形（二）

#* 
#* * 
#* * * 
#* * * * 
#* * * * * 
#* * * * * 
#* * * * 
#* * * 
#* * 
#* 

for i in range(10):
	if i < 5:
    	for m in range(i + 1):
        	print("*", end=" ")
        print()
    else:
        for c in range(10 - i):
            print("*", end=" ")
        print()