Python中print()中格式用法

n = 1
while n <= 5:
    print('*' * n)
    n = n + 1

n = 1
while n <= 5:
    m = 0
    while m < n:
        print('*', end='')
        m += 1
    n += 1
    print()

print('*' * n)：重复输出*号N次。

print('*', end='')：输出的*号后面不接任何字符