如何使项目打印三遍，然后在保持用户输入名称的同时开始新的一行

Question

Currently using Python 3.5.1

I've been trying to work on this code for hours. I need this for homework any tips or leads for anything im struggling tired and frustrated.

All I got was

• HB
• HB
• HB
• HB

What I need is HB HB HB

HB HB HB HB

This is my first programming class so all we really worked on was If, else, print, input, while, if i in range, and other basic python statements.

Answer 1

There are two aspects here:

1. printing 'HB' on the same line multiple times
2. adding a new line every 3 times HB prints

To get HB to print on the same line, you add additional arguments to the print function like this:

print('HB', end='')

The default end is a new line, so this changes it to print on one line.

To have a new line added after every 3 prints, the easiest way is to use the modulus operator (%) so that you add a new line when division by 3 has a 0 remainder.

One way to achieve this for your example would be this:

num_times = int(input('How many times should display HB '))

for i in range(num_times):
    print('HB ', end='')
    if (i + 1)%3 == 0:
        print('\n')

Answer 2

对于python 3，请在print函数中使用参数end='' （空字符串）以防止更改行（请参阅文档https://docs.python.org/3/library/functions.html#print ）