有没有办法在 StudentEntry 中插入“Ronald"?

好的，我想我明白你在阅读这个问题和 你之前问过的那个.你有一个数据库"(各种各样的)，他们都有自己的元数据，你想要一种在 tkinter 窗口中显示它的方法.

Ok, I think I understand what you're trying to do here after reading this question and the one you asked earlier. You have a "database" (of sorts) of people who all have their own metadata and you want a way of displaying it in a tkinter window.

这相对简单，我认为您是认真地认真地把代码中的东西复杂化.

This is relatively simple and I think you're seriously, seriously over complicating things in your code.

下面的例子做了我认为你需要的:

The below example does what I think you need:

from tkinter import *

root = Tk()

class App:
    def __init__(self, root):
        self.root = root
        self.data = [{"Name": "Alpha", "Var1": "3", "Var2": "1", "Var3": "4"},
                 {"Name": "Beta", "Var1": "1", "Var2": "5", "Var3": "9"},
                 {"Name": "Charlie", "Var1": "2", "Var2": "6", "Var3": "6"}
            ]
        self.var = StringVar()
        self.var.trace("w", self.callback)
        self.entry = Entry(self.root, textvariable=self.var)
        self.entry.grid(row=0, column=0, columnspan=2)
        self.labels = [(Label(self.root, text="Name"),Label(self.root)),(Label(self.root, text="Var1"),Label(self.root)),(Label(self.root, text="Var2"),Label(self.root)),(Label(self.root, text="Var3"),Label(self.root))]
        for i in range(len(self.labels)):
            self.labels[i][0].grid(row = i+1, column=0)
            self.labels[i][1].grid(row = i+1, column=1)
    def callback(self, *args):
        for i in self.data:
            if i["Name"] == self.var.get():
                for c in self.labels:
                    c[1].configure(text=i[c[0].cget("text")])

App(root)
root.mainloop()

那么让我们分解一下.

首先，我使用了不同的数据结构.在上面的例子中，我们有一个 dictionary 的 list.这是在 Python 中获得类似数据库"结构的一种非常典型的方式.

First of all, I'm using a different data structure. In the above example we have a list of dictionarys. This is a pretty typical way of getting a "database like" structure in Python.

然后我使用不同的方法来实际调用搜索，选择在 Entry 中分配给 textvariable 的 variable 上使用绑定代码>小部件.这意味着每次将 Entry 小部件写入 variable 时都会更新，每当此 variable 更新时，我们都会收到 的回调>callback() 函数，这部分可以在下面看到:

I'm then using a different method for actually calling the search, opting to use a binding on the variable assigned to textvariable within the Entry widget. This means that every time the Entry widget is written to a variable is updated, whenever this variable is updated we get a callback to the callback() function, this section can be seen below:

        self.var = StringVar() #we generate a tkinter variable class here
        self.var.trace("w", self.callback) #we setup the callback here
        self.entry = Entry(self.root, textvariable=self.var) #and we assign the variable to the Entry widget here

接下来，我基本上在 2 宽 3 高的网格中创建了 6 个 Label 小部件.左边的 Label 作为标识符，右边的 Label 留空以备后用.这些都是非常标准的 tkinter 内容，在本网站上已多次提及.

Next up I essentially create 6 Label widgets in a 2 wide, 3 high grid. The Labels on the left act as an identifier and the Labels on the right are left blank for later. This is all pretty standard tkinter stuff which has been covered too many times on this site.

最后一个可能也是最难理解的部分是实际的回调，所以让我们一行一行地看:

The last, and possibly hardest to understand section, is the actual callback, so let's look at it line-by-line:

for i in self.data:

这个 for 循环只是循环遍历每个字典，将其分配给 i.

This for loop simply cycles through every dictionary, assigning it to i.

    if i["Name"] == self.var.get():

这个 if 语句表示 IF Entry 小部件的值等于字典中 Name 键的值我们目前正在遍历 THEN True.

This if statement says IF the value of the Entry widget IS EQUAL TO the value of the Name key in the dictionary we're currently looping through THEN True.

如果上述检查结果为 True，则我们循环遍历包含我们之前生成的 Label 小部件的 self.labels.>

If the above check comes back as True we then loop through self.labels which contains the Label widgets we generated earlier.

                    c[1].configure(text=i[c[0].cget("text")])

最后，我们将 list(空白的 Label 小部件)的每个 tuple 中的第二个值设置为字典的值我们正在遍历键与标识符变量的文本匹配的位置.

Lastly, we set the second value in each tuple of the list (The blank Label widgets) to be the value of the dictionary we're looping through where the key matches the text of the identifier variable.

以上实现了我认为你想要的，你只需要修改你的数据格式.

The above accomplishes what I think you want, you just need to amend your data to the format.