------
## 最终结论
```python
def correct_bracketing(brackets: str):
    """ brackets is a string of "(" and ")".
    return True if every opening bracket has a corresponding closing bracket.
    """
    counter = 0  # 初始化计数器
    for char in brackets:  # 遍历字符串
        if char == '(':  # 处理'('字符
            counter += 1
        elif char == ')':  # 处理')'字符
            counter -= 1
            if counter < 0:  # 检查是否小于0
                return False
    return counter == 0  # 检查最终计数器值
```