小编Dav*_*rný的帖子

我开始构建python tkinter gui，问题是，在gui中添加了许多功能之后，加载看起来真的很丑。启动主循环时，在加载小部件之前，空白窗口会显示几毫秒，其他顶级窗口也会发生同样的情况（除了具有很少静态元素且不需要更新的窗口）。

我的问题是

有没有一种方法可以“预加载”窗口，以便当我调用它时，它可以顺利启动？

例如

root = MyTkRoot()
root.build_stuff_before_calling()
root.mainloop() # Smooth without widget loading lag

我的代码的一部分

from root_gui import Root
import threading
from time import sleep
from data_handler import DataHandler


def handle_conn():
    DataHandler.try_connect()
    smtp_client.refresh()


def conn_manager(): # Working pretty well
    while 'smtp_client' in locals():
        sleep(3)
        handle_conn()


smtp_client = Root()
handle_conn()


MyConnManager = threading.Thread(target=conn_manager)
MyConnManager.start() # Thanks to the second thread, the tk window doesn't have to wait for 3 seconds before loading the widgets.
smtp_client.mainloop()

完整的git项目 …

我目前正在学习C编程,因为我是一个python程序员,我不完全确定C的内部工作原理.我只是偶然发现了一个非常奇怪的事情.

void test_realloc(){
  // So this is the original place allocated for my string
  char * curr_token = malloc(2*sizeof(char));

  // This is really weird because I only allocated 2x char size in bytes 
  strcpy(curr_token, "Davi");
  curr_token[4] = 'd';
  // I guess is somehow overwrote data outside the allocated memory?
  // I was hoping this would result in an exception ( I guess not? )      

  printf("Current token > %s\n", curr_token);

  // Looks like it's still printable, wtf???
  char *new_token = realloc(curr_token, …