[4.1 试用流程](3.1%E4%B8%8B%E8%BD%BD%E8%AF%95%E7%94%A8%E6%B5%81%E7%A8%8B.md) [4.2 相关问题](3.2%E7%9B%B8%E5%85%B3%E9%97%AE%E9%A2%98.md)