1. 使用`%`操作符：
name = "李明"age = 26city = "SuZhou"print（"the name is %s, his age is %d, he comes from %s" % （name, age, city））
2. 使用`str.format（）`方法：
name = "李明"age = 26city = "SuZhou"print（"the name is {}, his age is {}, he comes from {}".format（name, age, city））
3. 使用f字符串（Python 3.6及以上版本支持）：
name = "李明"age = 26city = "SuZhou"print（f"the name is {name}, his age is {age}, he comes from {city}"）
以上三种方法都可以用来格式化字符串，选择哪一种取决于你的具体需求和Python的版本。f字符串因其简洁和易读性，在Python 3.6及以上版本中成为了首选的格式化方法。