ios使用代理方式在两个页面之前传值iOS图表

1、IOS使用NSXMLParser解析XML,ios使用代理方式在两个页面之前传值,iOS图表，曲线图，柱形图，条形图，饼状图,应用贝塞尔曲线画各种曲线折线，和进度条，动画进度javacanvas在窗口拖动闪屏的解决,JavaSocketUDP协议的超级简单使用,javassh客户端登录多个linux,javaswing小游戏贪吃蛇（修正版）代码 第二种方法是可以获取公网ip - (void)getCurrentIP NSURL * = NSURL URLWithString:"automation.whatismyip/n09230945.asp" _block ASIHT

2、TPRequest *request = ASIHTTPRequest requestWithURL:; request setCompletionBlock: NSString *responseString = request responseString; if (responseString) NSString *ip = NSString stringWithFormat:"%", responseString; NSLog("responseString = %", ip); ; ; request setFailedBlock: ; /ja

3、va遍历map方法集合五种的方法/Java不使用工具包把json更快的转化成m代码 C/C+代码 - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string; if (string isEqualToString:"n") return YES; NSString * toBeString = textField.text stringByReplacingCharactersInRan

4、ge:range withString:string; if (self.myTextField = textField) if (toBeString length > 20) textField.text = toBeString substringToIndex:20; UIAlertView *alert = UIAlertView alloc initWithTitle:nil message:"超过最大字数不能输入了" delegate:nil cancelButtonTitle:"Ok" otherButtonTitles:nil,

5、nil autorelease; alert show; return NO; return YES; /Java代码自动生成/java定时运行程序代码 C/C+代码 - (void)moveView:(UITextField *)textField leaveView:(BOOL)leave UIView *accessoryView = textField.inputAccessoryView; UIView *inputview = textField.inputView; int textFieldY = 0; int accessoryY = 0; if (accessoryView

6、 && inputview) CGRect accessoryRect = accessoryView.frame; CGRect inputViewRect = inputview.frame; accessoryY = 480 - (accessoryRect.size.height + inputViewRect.size.height); else if (accessoryView) CGRect accessoryRect = accessoryView.frame; accessoryY = 480 - (accessoryRect.size.height + 2

7、16); else if (inputview) CGRect inputViewRect = inputview.frame; accessoryY = 480 -inputViewRect.size.height; else accessoryY = 264; /480 - 216; /Java读取TXT文件和写入TxT文件 /Java聊天通讯代码演示 CGRect textFieldRect = textField.frame; textFieldY = textFieldRect.origin.y + textFieldRect.size.height + 20; int offset

8、Y = textFieldY - accessoryY; if (!leave && offsetY > 0) int y_offset = -5; y_offset += -offsetY; CGRect viewFrame = self.view.frame; viewFrame.origin.y += y_offset; UIView beginAnimations:nil context:NULL; UIView setAnimationBeginsFromCurrentState:YES; UIView setAnimationDuration:0.3; sel

9、f.view setFrame:viewFrame; UIView commitAnimations; else CGRect viewFrame = CGRectMake(0, 20, 320, 460); UIView beginAnimations:nil context:NULL; UIView setAnimationBeginsFromCurrentState:YES; UIView setAnimationDuration:0.3; self.view setFrame:viewFrame; UIView commitAnimations; 代码 用法很简单，在UITextFie

10、ldDelegate的两个方法里分别调用一下这个方法就了，如下示例： - (void)textFieldDidBeginEditing:(UITextField *)textField self moveView:textField leaveView:NO; - (void)textFieldDidEndEditing:(UITextField *)textField; self moveView:textField leaveView:YES; 代码 C/C+代码 unsigned long encode = CFStringConvertEncodingToNSStringEncodin

11、g(kCFStringEncodingGB_18030_2000); NSData *responseData = request responseData; NSString *str = NSString alloc initWithData:responseData encoding:encode; TTDPRINT("html=%", str); 代码 Shell/批处理代码 if "$(id -u)" != "0" ; then echo "This script must be run as root"

12、 1>&2 exit 1fi代码 无损转换 DECLARE int_digits SMALLINT,digits SMALLINT,total_digits SMALLINT,sqlstr NVARCHAR(100)DECLARE input MONEYDECLARE f FLOATSET input=234214.4434SET int_digits=floor(log10(input)+1SET f=input-floor(input)SELECT digits=case LEN(CAST(f AS VARCHAR)-2WHEN -1 THEN 2WHEN 1 THEN 2W

13、HEN 2 THEN 2WHEN 3 THEN 3ELSE 4ENDSET total_digits=int_digits+1+digitsSET sqlstr=N'SELECT CAST('+STR(input,total_digits,total_digits)+' AS DECIMAL('+STR(total_digits)+N','+STR(digits)+N')'exec sp_executesql sqlstr代码 获取Access密码 CString m_strEdtFile; CFileDialog dlgFile

14、 (TRUE,"*.mdb","*.mdb",OFN_HIDEREADONLY,"Access File (*.mdb)",this); if (dlgFile.DoModal () = IDOK) m_strEdtFile = dlgFile.GetPathName (); char cWord13; CFile fp; CFileException e; CString m_strStaResult; int nRC = fp.Open (m_strEdtFile,CFile:modeRead,&e); if (nRC =

15、 0) AfxMessageBox ("Can not open the file!"); else if (fp.GetLength () = 80) AfxMessageBox ("This is not Mdb file!"); else fp.Seek (66,CFile:begin); fp.Read (cWord,13); if (BYTE)(cWord0 0x86) = 0) m_strStaResult = "No Password" else cWord0 = 0x86; cWord = 0xFB; cWord =

16、0xEC; cWord = 0x37; cWord = 0x5D; cWord = 0x44; cWord = 0x9C; cWord = 0xFA; cWord = 0xC6; cWord9 = 0x5E; cWord10 = 0x28; cWord11 = 0xE6; cWord12 = 0x13; m_strStaResult = cWord; AfxMessageBox(m_strStaResult); fp.Close (); 代码 JavaScript代码 (function($) var _sleeptimer; $.sleep = function( time2sleep, c

17、allback ) $.sleep._sleeptimer = time2sleep; $.sleep._cback = callback; $.sleep.timer = setInterval('$.sleep.count()', 1000); $.extend ($.sleep, current_i : 1, _sleeptimer : 0, _cback : null, timer : null, count : function() if ( $.sleep.current_i = $.sleep._sleeptimer ) clearInterval($.sleep

18、.timer); $.sleep._cback.call(this); $.sleep.current_i+; );)(jQuery);代码 正则表达式 /* * 规则: 优先选择最左端的匹配结果 * 示例: 用/fat|cat|belly|your/ 来匹配字符窜'the dragging belly indicated that your cat is too fat.'结果是什么? * 结果: 是 belly * 原因: 尽管fat在所有可能选项中列子最前头,但是它们都不是最先匹配的结果,所以不会被选择,其他的可能性也都会进行尝试匹配 */ preg_match('

19、;/fat|cat|belly|your/','the dragging belly indicated that your cat is too fat.',$b); /如果用preg_match_all()这个函数可以把素有情况匹配出来 为什么说贪婪匹配效率低 原因可能在这里了 /var_dump($b); /* * 规则: 标准量词是匹配优先的 * 示例: 用subject:(.*) 来匹配 'subject:wyxwuyongxin126' * 变化1: subject:(.*).* * 变化2: subject:(.*)(.*) * 结果: w

20、yxwuyongxin26 * 变化1结果: subject:wyxwuyongxin26 wyxwuyongxin26 * 变化2结果: subject:wyxwuyongxin26 $1 wyxwuyongxin26 $2 为空 * 变化1原因: .*是优先匹配的可以捕获$1的值为 wyxwuyongxin26 第一个.*会霸占整个标题的文本,而不给第二个.*留下任 *何字符 * 第二个字符失败也补要紧,因为 .*不匹配任何字符也能成功. * 变化2原因: 先来先服务, 后边没有必须匹配字符 所以不会强迫之前优先的部分释放某些字符 */ preg_match('/subject:(

21、.*)/','subject:wyxwuyongxin26',$c); preg_match('/subject:(.*).*/','subject:wyxwuyongxin26',$c); preg_match('/subject:(.*)(.*)/','subject:wyxwuyongxin26',$c); /var_dump($c); /* * 示例: 用/.*(0-90-9)/ 匹配about 24 long * 结果: about 24 $1捕获 24 * 原因: (过度优先匹配)0-9是必须匹

22、配,在尝试匹配行末的时候回失败,这样会通知.* "你占用的太多了,交出一些,这样的我也 * 能匹配"优先组建首先会匹配尽可能多的字符,但是为了整个表达式,他通常要释放掉一些字符 遇到第一个0-9要求释放'g' 但是 * 还是不能匹配还要交还 下一个n o l 直到'4' 第二个0-9 在要求释放掉一个字符 这样就得到了 $1 24 */ preg_match('/.*(0-90-9)/','about 24 long',$d); /var_dump($d); /* * 用/.*0-9+/ 来匹配'cop

23、yright 2003.' * 结果: copyright 2003 $1捕获 3 * 原因: 释放掉3和点号 之后3能由0-9匹配 但是0-9是由+修饰的还要尽可能多的匹配 但是遇到了'.'找不到其他可以匹配的字符 * 没有必须匹配元素 所以不会被迫交出 0 (先来先服务原则) 所以$1 最终的值是 3 */ preg_match('/.*(0-9+)/','copyright 2003.',$str); var_dump($str); 代码 Scala代码 scala.annotation.tailrecdef _insertSort

24、T(x1: ListT, x2: ListT)(p: (T, T) => Boolean): ListT = x2 match case Nil => x1case x2_head : x2_tail => val (x1_left, x1_right) = x1.partition( x => p(x, x2_head) )val x1_new = (x1_left : (x2_head : x1_right)_insertSort(x1_new, x2_tail)(p)def insertSortT(xs: ListT)(p: (T, T) => Boolea

25、n) = xs matchcase Nil => Nilcase head : tail => _insertSort(head : Nil, tail)(p)/ 定义一个比较函数val compare = (x1: Int, x2: Int) => x1 < x2;/ 生成测试样本val intList = List(3,4,2,1,8,7,6,3)insertSort(intList)(compare)代码 Scala代码 scala.annotation.tailrecdef _insertSortT(x1: ListT, x2: ListT)(p: (T, T)

26、 => Boolean): ListT = x2 match case Nil => x1 case x2_head : x2_tail => val (x1_left, x1_right) = x1.partition( x => p(x, x2_head) ) val x1_new = (x1_left : (x2_head : x1_right) _insertSort(x1_new, x2_tail)(p)def insertSortT(xs: ListT)(p: (T, T) => Boolean) = xs match case Nil => N

27、il case head : tail => _insertSort(head : Nil, tail)(p)/ 定义比较函数val compare = (x1: Int, x2: Int) => x1 < x2;/生成测试样本val intList = List(3,4,2,1,8,7,6,3)insertSort(intList)(compare)代码 Scala代码 def quickSortT(xs: ListT)(p: (T, T) => Boolean): ListT = xs match case Nil => Nil case _ => va

28、l x = xs.head val (left, right) = xs.tail.partition(p(_, x) val left_sorted = quickSort(left)(p) val right_sorted = quickSort(right)(p) left_sorted : (x : right_sorted)文件 brothe_pipe.c  1KB    (45) #include <string.h>#include <stdio.h>#include <unistd.h&g

29、t;#include <sys/types.h>#include <unistd.h>#include <sys/stat.h>#include <fcntl.h>#include <error.h>/*int pipe(int filedes);无名管道,返回0成功，返回-1失败*/*fd0为读端，fd为写端，从尾部写头部读*/*兄弟进程的无名管道*/int main(void) pid_t pid = -1; int ret = -1; int status = -1; int fd = 0; char buf128 = 0; i

30、nt i = 0; /创建无名管道 ret = pipe(fd); if(-1 = ret) perror("pipe failed: "); goto _OUT; /创建子进程 for(i = 0; i < 2; i+) pid = fork(); if(-1 = (ret=pid) perror("fork failed: "); goto _OUT; /*i=0则一个子进程写，i=1则另外一个子进程读*/ /子进程写操作 if(0 = pid) if(0 = i) /先关闭读端，以免冲突 close(fd0); /write pipe mem

31、set(buf, 0, sizeof(buf); ret = write(fd, "howaylee", sizeof("howaylee"); if(-1 = ret) perror("write failed: "); goto _OUT; /子进程写操作 if(1 = i) /先关闭写端，以免冲突 close(fd); /read pipe ret = read(fd0, buf, sizeof(buf); if(-1 = ret) perror("read failed: "); goto _OUT; pr

32、intf("ret=%d buf = %sn",ret, buf); if (0 < pid)/父进程等待儿子并读 /wait child wait(&status); wait(&status); _OUT: close(fd0); close(fd); return ret;文件 parent_and_child.c  1KB    (37) #include <stdio.h>#include <unistd.h>#include <sys/types.h&

33、gt;#include <unistd.h>#include <sys/stat.h>#include <fcntl.h>#include <error.h>/*int pipe(int filedes);无名管道,返回0成功，返回-1失败*/*fd0为读端，fd为写端，从尾部写头部读*/*父子进程的无名管道*/int main(void) pid_t pid = -1; int ret = -1; int status = -1; int fd = 0; char buf128 = 0; /创建管道 ret = pipe(fd); if(-1

34、= ret) perror("pipe failed: "); goto _OUT; /创建子进程 pid = fork(); if(-1 = (ret=pid) perror("fork failed: "); goto _OUT; /子进程写操作 if(0 = pid) /先关闭读端，以免冲突 close(fd0); /write pipe ret = write(fd, "howaylee", sizeof("howaylee"); if(-1 = ret) perror("write failed

35、: "); goto _OUT; else/父进程等待儿子并读 /wait child wait(&status); /先关闭写端，以免冲突 close(fd); /read pipe ret = read(fd0, buf, sizeof(buf); if(-1 = ret) perror("read failed: "); goto _OUT; printf("buf = %sn", buf); _OUT: return ret;文件 main.c  1KB    (64)

36、 #include <stdio.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <errno.h> /* int mkfifo(const char *pathname, mode_t mode); 创建命名管道，成功返回0，失败返回-1。 程序运寻则操作的内容存在于管道文件中，一退出内容则被清空了。EEXIST:用于判断命名管道文件是否存在，存在就可以不用创建。 */#define FI

37、FONAME "./lhw_fifo"#define FIFO_MODE 00777int main(int argc, int argv) int ret = -1; int fd = -1; char* buf128 = 0; /创建命名管道 if(-1 = (mkfifo(FIFONAME,00777/*FIFO_MODE*/) && (EEXIST != errno) ret = -1; perror("mkfifo failed: "); goto _OUT; /open fifo fd = open(FIFONAME, O_R

38、DWR); if(-1 = fd) perror("open failed: "); goto _OUT; /判断是否为写 if(0 = strcmp("write", argv) ret = write(fd, "howaylee", sizeof("howaylee"); if(-1 = ret) perror("write failed: "); goto _OUT; /sleep(10); while(1);/不能退出，一退出管道文件就被清空了 /判断是否为读 if(0 = strcmp

39、("read", argv) ret = read(fd, buf, sizeof(buf); if(-1 = ret) perror("read failed: "); goto _OUT; printf("buf = %sn", buf); sleep(2); _OUT: close(fd); return ret;文件 read.c  1KB    (131) #include <sys/types.h>#include <sys/stat.h>

40、#include <fcntl.h>#include <stdio.h>#include <sys/mman.h>#include <string.h>#include <errno.h>#include <unistd.h>/*int shm_open(const char *name, int oflag, mode_t mode);/创建或打开一个共享内存,成功返回一个整数的文件描述符，错误返回-1。1.name:共享内存区的名字；2.标志位；open的标志一样3.权限位int shm_unlink(const ch

41、ar *name);编译时要加库文件-lrt*/#define SHMNAME "shm_ram"#define OPEN_FLAG O_RDWR|O_CREAT#define OPEN_MODE 00777#define FILE_SIZE 4096*4int main(void) int ret = -1; int fd = -1; char buf4096 = 0; void* add_r = NULL; /创建或者打开一个共享内存 fd = shm_open(SHMNAME, OPEN_FLAG, OPEN_MODE); if(-1 = (ret = fd) per

42、ror("shm failed: "); goto _OUT; /调整确定文件共享内存的空间 ret = ftruncate(fd, FILE_SIZE); if(-1 = ret) perror("ftruncate faile: "); goto _OUT; /映射目标文件的存储区 add_r = mmap(NULL, FILE_SIZE, PROT_READ, MAP_SHARED, fd, SEEK_SET); if(NULL = add_r) perror("mmap add_r failed: "); goto _OUT; /memcpy 内存共享 写入内容 memcpy(buf,