【公开题库】期中冲刺练习题库

What is the value of xs after the following is evaluated?xs = 'hello' ys = xs[:] ys = ys.upper()

What is the best description of the behaviour of the following function?def check(xs: list, val) -> int: count = 0 for x in xs: if x == val: count += 1 return count

What is the value of result after only the following code is run?result = [] for x in range(6): if x == 2 or 3: result.append(x)

What is the best description of the behaviour of the following function?def mystery(xs: list[int]) -> bool: for i in range(len(xs) - 1): if xs[i] > xs[i + 1]: return False return True

What is the value of count after the following code is run?count = 0 for x in 'Hello World': if x == 'l' or x == 'o': count += 1