当index是数组操作函数的一部分时，替换python中的for循环

numbers = [5, 12, 3, 15, 8]
indices_to_replace = []

for i in range(len(numbers)):
    if numbers[i] > 10:
        indices_to_replace.append(i)

for i in indices_to_replace:
    numbers[i] = numbers[i] ** 2

print(numbers)

numbers = [5, 12, 3, 15, 8]
numbers = [num ** 2 if num > 10 else num for num in numbers]
print(numbers)

numbers = [5, 12, 3, 12, 8]
index = numbers.index(12)
print(index)  # 输出 1，而不是 1 或 3

indices = [i for i, num in enumerate(numbers) if num == 12]
print(indices)  # 输出 [1, 3]

large_numbers = [num for num in range(10**7)]  # 可能会占用大量内存
large_numbers_gen = (num for num in range(10**7))  # 按需生成，节省内存