#Lable demonstration. from Tkinter import * class LabelDemo( frame ): """Demonstrate Labels""" def _init_ ( self ): """Create three Labels and pack them""" frame._init_( self ) & initializes frame object # frame file available space self.pack(expand = YES. file = BOTH ) self.Label1 = Label( self, text = "Label with text" ) # resize frame t...
#!/usr/bin/env python # add stack datastructure # __author__ = "lynn lin" class UnderFlowError(Exception): pass class stack(object): def __init__(self): self.sta = [] def __len__(self): return len(self.sta) def stackEmpty(self): return self.__len__() def push(self,value): self.sta.append(value) def pop(self): try: ...
现今，见到的比较多的ethernet frames有如下的四种： a. Ethernet II b. Ethernet 802.3 (Raw), aka Novell Ethernet c. Ethernet 802.3/802.2 by IEEE d. Ethernet SNAP ---------------------------------------------------------------------------------| Preamble | Dest MAC | Src MAC | Length/EtherType | Data | FCS |--------------------------------------------------------------------------...
Inverse Arp Request When encapsulating other protocols the data field of the frame Relay packet contains a Network Level Protocol Identification (NLPID) which can be 0xCC (IP), 0x80 (Sub-Network Access Protocol - SNAP) or 0x81 (OSI). When a SNAP header is identified, the 3-byte Organisational Unique Identifier (OUI) and the 2-byte Protocol Identifier (PID) further identifies the protocol. ...
一，Where storage lives It's useful to visualize some aspects of how things are laid out while the program is running, in particular how memory is arranged. There are six different places to store data: Registers. This is the fastest storage because it exists in a place different from that of other storage...
是在vxworks的bsp阶段，bsp不能malloc大空间，查看config.h文件 #undef stack_SAVE #define stack_SAVE 512 /* maximum stack used to preserve */ 不知道同这个512有没有关系？没有板子，暂没办法测。所问一下
Note: I only searched for C/C++ stacks and applications. There also exist a lot of stacks and applications for other programming languages, especially for java. If you are looking for Java stacks/applications, please ask Google. If you have any comments or interesting links, or do you want to report broken links, please contact me RTP stacks (mainly open source C/C++ stacks) jrtplib: C++; Licen...
同样的数据，为什么第一次（无序）使用快排（递归）很正常 而接着再快排，就会stack Overflow呢？ 数据为一个6w多记录的数组，保存一个单链表的节点指针 数组和单链表都在堆上 同样的快排代码 对于int a[63537] = {1, 2, 3, 4, 5, ..., 63537}这样的数据 进行排序，为什么不论排几次都不会Statck Overflow？ :evil: 实在受不了了，高手帮一把，快排的代码没有问题。 ps:每趟快排以第一个数据为基准
