JavaÖÐstartWith·½·¨µÄʹÓã¡
½ñÌì¿´Java´úÂëʱ£¬¿´µ½ÁË×Ö·û´®ÓÐÒ»¸ö·½·¨ÊÇstartsWith(String str)µ±Ê±¾õµÃ¼ûÃûÖ®Ò⣬ºÜ¼òµ¥Âð£¬È»ºó¾Í×Ô¼º¶¯ÊÖ×öÁËÒ»ÏÂ,ûÏëµ½·¢ÏÖÁËÒ»¸östartsWith()·½·¨µÄÖØÔØ,startsWith(String str,int Index),µ±Ê±ÉÏÍøÈ¥²éÁËÒ»ÏÂûÓкó±ßÕâ¸ö·½·¨,ÓÚÊÇ×Ô¼º×öÁËһϲâÊÔ,ÏÖÔÚ¸ø³öÈçÏÂÏêϸ½âÊÍ,startsWith(String str)¾ÍÊǼì²éÐββÎÊýÊÇ·ñÓëÄãÒª¼ì²éµÄ×Ö·û´®¿ªÍ·Ïàͬ,¶østartsWith(Sring str,int Index)ÔòÊÇ´ÓÄãÒª±È½ÏµÄÔ×Ö·û´®µÄÖ¸¶¨Ï±꿪ʼºÍÐβÎ×÷±È½Ï£¬ÕâÀï±ßÄØstr.startsWith(String str)ºÍstr.startsWith(string str,0)ÊÇûÓÐÇø±ðµÄ,ϱ߾Ϳ´´úÂë°É£¡
String st1 = "dsadas";
System.out.println("st1:"+st1.startsWith("sa",1));
String st2 = "dsadas";
System.out.println("st1:"+st2.startsWith("sa"));
String st3 = "dsadas";
System.out.println("st2:"+st3.startsWith("ds"));
String st4 = "dsadas";
System.out.println("st4:"+st4.startsWith("ds",0));
String st5 = "dsadas";
System.out.println("st5:"+st5.startsWith("ds",1));
Êä³ö½á¹ûΪ:
st1:true
st1:false
st2:true
st4:true
st5:false
Ïà¹ØÎĵµ£º
JSP¾Å´óÄÚÖöÔÏó£º
1.ÓëServletÓйصÄÒþº¬µÄ¶ÔÏó
(1)page page¶ÔÏó¶ÔÓ¦JavaÖеĹؼü×Öthis,Ëü´ú±íµ±Ç°JSPÒ³Ãæ
(2)config Config¶ÔÏóʹÓÃWebÈÝÆ ......
ÓÉÓÚÊÖÍ·ÓиöÏîÄ¿ÐèÒªÓõÄJavaµÄÊäÈëÊä³ö²Ù×÷£¬
¡¡¡¡ËùÒÔ£¬¿ÐÁ˼¸ÌìÊ飬¶ÔJavaµÄÁ÷¼¼ÊõÓÐЩÁ˽⣬²»¹ý£¬»¹ÊÇÓкܶ಻ÊǺÜÃ÷°×£¬ÏÂÃæÊÇÎÒ¿´ÊéÕûÀíµÄһЩ±Ê¼Ç£¬ÑϸñµÄ˵Ӧ¸Ã²»ÊÇÔ´´£¬ÎÒÌù³öÀ´Ö»ÊÇÏ£Íû¶Ô´ó¼ÒÓÐһЩ°ïÖú
¡¡¡¡
¡¡¡¡1¡¢JavaÓµÓÐÒ»¸öÍêÕûµÄÁ÷ÀàÐÍ£¬×ÜÊý³¬¹ý60£¬¶øËĸö³éÏóÀ๹³ÉÁËÕâЩÀàµÄ»ù´¡
¡¡¡¡
¡¡¡¡In ......
ÊýÄêǰ£¬µ±ºÍÒ»¸öÈí¼þÍŶÓÒ»ÆðÓà Java ÓïÑÔ±àдһ¸öÓ¦ÓóÌÐòʱ£¬ÎÒÌå»áµ½±ÈÒ»°ã³ÌÐòÔ±¶àÖªµÀÒ»µã¹ØÓÚ Java ¶ÔÏóÐòÁл¯µÄ֪ʶËù´øÀ´µÄºÃ´¦¡£
¹ØÓÚ±¾ÏµÁÐ
Äú¾õµÃ×Ô¼º¶® Java ±à³Ì£¿ÊÂʵÉÏ£¬´ó¶àÊý³ÌÐòÔ±¶ÔÓÚ Java ƽ̨¶¼ÊÇdz³¢ÔòÖ¹£¬Ö»Ñ§Ï°ÁË×ãÒÔÍê³ÉÊÖÍ·ÉÏÈÎÎñµÄ֪ʶ¶øÒÑ¡£
´óÔ¼Ò»Äêǰ£¬Ò»¸ö¸ºÔð¹ÜÀíÓ¦ÓóÌÐòËùÓÐÓû§ÉèÖà ......
ÔÚ×öpdfÎĵµ×ª³ÉjpgµÄʱºò£¬·¢ÏÖÁËJmagickµÄ´´½¨¸ßÖÊÁ¿µÄͼƬµÄÒ»¸öjavaÀà¿â,×Ô¼ºÒÔǰʹÓÃÁíÍâµÄÒ»¸öÀà¿â,¸Ð¾õÕâ¸ö¸üºÃµã,¾ÍÊÔ×ÅÓÃÁËÏÂ,¸Ð¾õ²»´í
1.ʹÓõÄwindowsϵÄjmagick-win-6.3.9-Q16.zip µØÖ·ÊÇ£ºhttp://downloads.jmagick.org/6.3.9/
2.doc¶ÔÓ¦µÄapiµØÖ·£ºhttp://downloads.jmagick.org/jmagick-doc/
3.°²×°Ima ......
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
/**
* @author dengshaohua
*/
public class ReadPhone {
/**
* ¶ÁÈ¡Êý¾Ý
*/
public void ReadData(){
try {
FileReader read = new File ......