语法练习：left2

题目：left2

Given a string, return a “rotated left 2” version where the first 2 chars are moved to the end. The string length will be at least 2.

left2(‘Hello’) → ‘lloHe’
left2(‘java’) → ‘vaja’
left2(‘Hi’) → ‘Hi’

我的解答：

def left2(str):return str[2:] + str[:2]

Expected Run
left2(‘Hello’) → ‘lloHe’ ‘lloHe’ OK
left2(‘java’) → ‘vaja’ ‘vaja’ OK
left2(‘Hi’) → ‘Hi’ ‘Hi’ OK
left2(‘code’) → ‘deco’ ‘deco’ OK
left2(‘cat’) → ‘tca’ ‘tca’ OK
left2(‘12345’) → ‘34512’ ‘34512’ OK
left2(‘Chocolate’) → ‘ocolateCh’ ‘ocolateCh’ OK
left2(‘bricks’) → ‘icksbr’ ‘icksbr’ OK
other tests
OK

All Correct

标答：

def left2(str):return str[2:] + str[:2]

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语法练习：left2

语法练习：left2

题目：left2

我的解答：

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