我尝试了各种程序来获得所需的模式(如下所示)。最接近所需结果的程序如下:
输入:
[06-Oct-2019 16:26:49 America/New_York] PHP Warning: move_uploaded_file(videos/VSkzuJn0aZYoLvNLJwv3IrFNA9PV1zjfd4MfoXP3rjl1Nm7uW8--Peek 2019-05-20 18-11.mp4): failed to open stream: No such file or directory in /home/myacc/website.com/index.php on line 34
[06-Oct-2019 16:26:49 America/New_York] PHP Warning: move_uploaded_file(): Unable to move '/tmp/phpTOsPRj' to 'videos/VSkzuJn0aZYoLvNLJwv3IrFNA9PV1zjfd4MfoXP3rjl1Nm7uW8--Peek 2019-05-20 18-11.mp4' in /home/myacc/website.com/index.php on line 34
输出:
for i in range(1,6):
for j in range(i,i*2):
print(j, end=' ')
print( )
必需的输出:
1
2 3
3 4 5
4 5 6 7
5 6 7 8 9
我可以得到一些提示以获取所需的输出吗?
注:python的新手。
答案 0 :(得分:1)
将打印的值存储在循环外,然后在打印后增加
v = 1
lines = 4
for i in range(lines):
for j in range(i):
print(v, end=' ')
v += 1
print( )
答案 1 :(得分:0)
如果您不想跟踪计数并用数学方法解决这个问题并能够直接计算第n条线,那么您正在寻找的公式就是triangle numbers的公式:
triangle = lambda n: n * (n + 1) // 2
for line in range(1, 5):
t = triangle(line)
print(' '.join(str(x+1) for x in range(t-line, t)))
# 1
# 2 3
# 4 5 6
# 7 8 9 10