为什么在使用循环打印时，订单未正确排序？

Question

mysql DatabaseName -u DBuser -p DBPassword < path/to/mysql/file.sql

我正在尝试运行此循环，但结果以这种形式排列

student_name = {"Karrie", "Freya", "Bruno"}

for name in student_name:
print("The student name is {0}".format(name))

Answer 1

集是无序的。如果您要查找有序集合，请使用列表：

student_name = ["Karrie", "Freya", "Bruno"]

for name in student_name:
    print("The student name is {0}".format(name))

Answer 2

使用已排序：

student_name = {"Karrie", "Freya", "Bruno"}
for name in sorted(student_name):
    print("The student name is {0}".format(name))