使用占位符进行格式化输出:
name = 'Alice'age = 25print('My name is %s and I am %d years old.' % (name, age))使用format方法进行格式化输出:name = 'Bob'age = 30print('My name is {} and I am {} years old.'.format(name, age))使用f-string进行格式化输出(Python 3.6及以上版本):name = 'Charlie'age = 35print(f'My name is {name} and I am {age} years old.')控制输出格式:value = 3.14159print('The value is {:.2f}'.format(value)) # 输出保留两位小数使用位置参数和关键字参数:name = 'David'age = 40print('My name is {0} and I am {1} years old. {0} is a {job}.'.format(name, age, job='teacher')) 

