Question

python怎样输出n行带标号的Hello world？

Answer 1

lines = int(input())

for i in range(0, lines):

    print('{} Hello world'.format(i + 1))

如果版本够高, 可以这样:

Answer 2

honey@DESKTOP-H6QG9QG:~% cat mypy.py
lines=int(input())
for i in range(0,lines):
print("%d Hello world." %(i+1))
print("\n")
honey@DESKTOP-H6QG9QG:~% python3 mypy.py
5
1 Hello world.
2 Hello world.
3 Hello world.
4 Hello world.
5 Hello world.