如何使用Python 打印各种三角形

rows = int(input('输入列数：'))for i in range(1, rows):print('*' * i)for i in range(1, rows):for j in range(i):print("*", end="")print("")

rows = int(input('输入列数：'))for i in range(1, rows):print(' * ' * i)for i in range(1, rows):for j in range(1, i + 1):print(" * ", end="")print("")

rows = int(input('输入列数：'))for i in range(1, rows):if i % 2 != 0:str = ('*' * i)print(str.center(9, ' '))

rows = int(input('输入列数：'))for i in range(0, rows):print(" * " * rows)for i in range(0, rows):for j in range(0, rows):print(" * ", end="")print(" ")

print('正方形2')for i in range(10):for j in range(0, 10 - i):print(end=' ')for n in range(0, 0 + i):print(end=' ')for m in range(0 + i, 10):print('', end=' ')for k in range(10 - i, 10):print('', end=' ')print('')

for x in range(10):for i in range(x, 10):print('*', end='')print('')

print('同一行打印直角三角形')for j in range(10):for x in range(0, j):print('', end='')for n in range(j, 19 - j):print(' ', end='')for k in range(0, j):print('', end='')print('')

print('直角三角形拼装心形')for j in range(8):for x in range(0, j):print('', end='')for n in range(j, 19 - j):print(' ', end='')for k in range(0, j):print('', end='')print('')for i in range(10):for j in range(0, 0 + i):print(end=' ')for k in range(0 + i, 10):print('*', end=' ')print('')

print('打印倒立等腰三角形1')for j in range(10):for x in range(0, j):print(end=' ')for n in range(j, 15 - j):print('*', end='')

print('打印倒立等腰三角形2')for i in range(10):for j in range(0, 0 + i):print(end=' ')for k in range(0 + i, 10):print('*', end=' ')print('')

print('同一行打印两个等腰三角形')for i in range(10):for j in range(0, 10 - i):print(end=' ')for k in range(10 - i, 10):print('', end=' ')for n in range(0, 0):print(end=' ')for m in range(0 + i, 10):print(' ', end=' ')for jj in range(10, 10):print(end=' ')for kk in range(10 - i, 10):print('', end=' ')print('')

print('等腰三角形拼装心形')for i in range(10):for j in range(0, 10 - i):print(end=' ')for k in range(10 - i, 10):print('', end=' ')for n in range(0, 0):print(end=' ')for m in range(0 + i, 10):print(' ', end=' ')for jj in range(10, 10):print(end=' ')for kk in range(10 - i, 10):print('', end=' ')print('')for i in range(20):for j in range(0, 0 + i):print(end=' ')for k in range(0 + i, 20):print('*', end=' ')print('')