Struts2读书笔记(一) 导读

Here are some of the features that may lead you to consider struts2 :

1, Action based framework

2, Mature with a vibrant developer and user community

3, Annotation and XML configuration options

4, POJO-based actions that are easy to test

5, Spring,SiteMesh and Tiles integration

6, OGNL expression language integeration

7, Themes based tag libraries and Ajax tags

8, Multiple view options(Jsp,Freemarker,Velocity and XSLT)

9, Plug-ins to extend and modify framework features

 

difference

struts2 is an action based MVC web framework

JSF,Wicket,Tapestry are component based frameworks

 

history

in the beginning of 2005, Jesse James Garrett coin Ajax(Asynchronous JavaScript and Xml)

 

### 回答1: 在 TURBO C 2.0 中,您可以使用 biosdisk() 函数来格式化软盘。 下面是一段代码示例: ``` #include <stdio.h> #include <dos.h> int main() { // 定义扇区的大小 unsigned int sector_size[3] = {512, 512, 1024}; // 定义填充字节 unsigned char fill_char[3] = {0xF6, 0xF6, 0x48}; // 格式化磁道 70 面 0 的前三个扇区 for (int i = 0; i < 3; i++) { int result = biosdisk(2, 0, 70, 0, i + 1, 1, sector_size[i], fill_char[i]); if (result != 0) { printf("格式化扇区 %d 失败,返回码: %d\n", i + 1, result); } } return 0; } ``` 请注意,在使用 biosdisk() 函数之前,需要包含 dos.h 头文件。 希望这能帮到您! ### 回答2: 使用TURBO C 2.0语言,可以通过以下代码格式化软盘的70磁道0面,并分别格式化3个扇区,大小分别为512字节、512字节和1024字节。其中,前两个扇区使用F6填充,第三个扇区使用48填充。 ```c #include<stdlib.h> #include<stdio.h> #include<dos.h> void formatFloppyDisk(){ union REGS regs; regs.h.ah = 0x0;// To format a floppy disk, we set AH=0 regs.h.dl = 0;// Drive number (0=A, 1=B, etc.) regs.x.cx = 0;// Track number to format regs.h.dh = 0;// Head number regs.h.al = 0;// Sector size (0=default, 1=512 bytes, 2=1024 bytes, 3=2048 bytes etc.) int FILL_BYTE = 0;// The byte value to fill the sectors with during formatting int NUM_SECTORS = 3;// Number of sectors to format // To format 70th track 0th head regs.x.ax = 0x1301; // 0x13 = Reset disk system, 01H = Reset only specified drive int86(0x13, &regs, &regs); // BIOS interrupt to reset disk system for (int i=0; i<NUM_SECTORS; i++){ regs.x.ax = 0x3101; // 0x31 = Write Format, 01H = Format only current track regs.x.bx = 0x0001; // 0x00 = Drive A:, 01H = Head 1, 0 = Generate ID Field depending on the disk in the drive 1 = Keep the ID Field all zeros regs.x.cx = 0x0170; // Track number=70(0-79 range) regs.h.dh = 0x00; // Head number=0 or 1 regs.h.al = 0x02; // Control byte=always zero regs.x.dx = i+1; // Sector number starting from 1 regs.x.si = 0x0000; // segment and offset of read/write buffer regs.x.di = 0x0000; // segment and offset of result if(i == 2){ FILL_BYTE = 0x48; // Fill the third sector with 48 regs.x.ax = 0x3102; // 0x31 = Write Format, 02H = Format sequential tracks immediately following the one being formatted }else{ FILL_BYTE = 0xF6; // Fill the first two sectors with F6 } regs.h.ah = FILL_BYTE; // Fill the sector with specified byte int86(0x13, &regs, &regs); // BIOS interrupt to format the specified sector } } int main(){ formatFloppyDisk(); return 0; } ``` 上述代码使用了INT 0x13,即BIOS中断服务例程,来执行软盘格式化操作。通过设置寄存器的不同参数,可以指定要格式化的磁道、面、扇区大小和填充字节。在这个例子中,我们格式化了软盘70磁道0面的3个扇区,前两个扇区使用F6填充,第三个扇区使用48填充。
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