Python教程——列表与字典结合

亦凉 2023-06-06 12:06 18阅读 0赞

##### 在列表中存储字典 #####

我们先创建三个[字典][Link 1]，每个字典代表着一个学生的信息，然后使用[列表][Link 2]把这些学生信息装起来

student1 = { 
    	'id' : 1,
    	'name' : '小明',
    	'age' : 18,
    	'class' : 'class one'
    }
    
    student2 = { 
    	'id' : 2,
    	'name' : '小huang',
    	'age' : 18,
    	'class' : 'class two'
    }
    
    student3 = { 
    	'id' : 3,
    	'name' : '小红',
    	'age' : 18,
    	'class' : 'class three'
    }
    
    student_list = [student1,student2,student3]
    
    for student in student_list:
    	print(student)

![在这里插入图片描述][20191011161749964.png]  
生成10个学生信息

student_list = []
    
    for student in range(1,10):
    	new_student = { 'id':1,'name':'lisa','age':18}
    	student_list.append(new_student) #加入学生信息
    	new_student['id'] = student #id自增
    print(student_list)

![在这里插入图片描述][20191012194933297.png]

##### 在字典中存储列表 #####

我们先创建一个字典，里面存储学生信息，班级，课程

students = { 
        "student":["id","name","age"],
        "class":["class_one","class_two"],
        "course":["chinese","math","english"]
    }
    
    print(students['student'])

![在这里插入图片描述][20191012195819217.png]  
遍历字典

students = { 
        "student":["id","name","age"],
        "class":["class_one","class_two"],
        "course":["chinese","math","english"]
    }
    
    for item in students.items():
        print(item)

![在这里插入图片描述][20191012195957266.png]

##### 在字典中还可以存储字典 #####

字典除了可以存储列表之外，还可以存储字典，如：

students = { 
        "student1":{ 
            "id":1,
            "name":"Lisa",
            "age":18
        },
        "student2":{ 
            "id":2,
            "name":"Jhon",
            "age":19
        },
        "student3":{ 
            "id":3,
            "name":"WuLin",
            "age":20
        }
    }
    
    print(students['student1'])

![在这里插入图片描述][20191012200710751.png]

[Link 1]: https://blog.csdn.net/Woo_home/article/details/102501637
[Link 2]: https://blog.csdn.net/Woo_home/article/details/102500279
[20191011161749964.png]: /images/20230601/07a7904617414016b97ba7791ac7e08a.png
[20191012194933297.png]: /images/20230601/c52563c493424bbaa4d5ebf3a4e399d0.png
[20191012195819217.png]: /images/20230601/60ed3773836b4c12996a1599537eb9b2.png
[20191012195957266.png]: /images/20230601/c6187e366a3943efbb07bccbdd0fb6a6.png
[20191012200710751.png]: /images/20230601/a68d64750cd54c028616ce7e792d19ed.png