喹诺酮类药物主要是抑制细菌DNA回旋酶，干扰DNA的复制与功能，导致细菌死亡，其作用特点是生物利用度高，抗菌活性强，抗菌谱广，耐药性小，与其它类型的抗生素和抗菌药物之间无明显的交叉耐药性等，因而，近年来喹诺酮类药物临床应用广泛，发展也十分迅速，目前临床上使用的? Quinolones mainly inhibit bacterial DNA gyrase, interfere with DNA replication and function, leading to bacterial death, its role is characterized by high bioavailability, strong antibacterial activity, broad antibacterial spectrum, resistance to small, and other types of antibiotics and Antibacterial drugs, such as no cross-resistance between, therefore, in recent years quinolones widely used in clinical applications, the development is also very rapid, the current clinical use?