<script src="http://www.studyday.net/demo/jquery.js"></script>
<script language="JavaScript">
jQuery(document).ready(function($){
$("#txt_input").keyup(function (){
main();
}).keydown(function (){
main();
}).change(function (){
main();
});
function main(){
var loopFlag = true;
var divContentHeight = parseInt($("#div_content").css("height"));
var htmlCode = $("#txt_input").val()+"<div id='div_mark' name='div_mark'></div>";
$("#div_content").html(htmlCode);
var fontSize = get_div_font_size();
while (loopFlag){
loopFlag = get_div_height()>divContentHeight ? true : false;
if (loopFlag) {
fontSize = fontSize-1;
set_div_font_size(fontSize);
}
}
loopFlag = true;
while (loopFlag) {
loopFlag = fontSize<50 && get_div_height()<divContentHeight ? true : false;
if (loopFlag) {
fontSize = fontSize+1;
set_div_font_size(fontSize);
if (get_div_height()>divContentHeight) {
fontSize = fontSize-1;
set_div_font_size(fontSize);
loopFlag = false;
}
}else {
loopFlag = false;
}
}
}
function get_div_height(t){
return parseInt($('#div_mark').offset().top - $('#div_content').offset().top);
}
function get_div_font_size(){
return parseInt($("#div_content").css("font-size"));
}
function set_div_font_size(s){
$("#div_content").css("font-size", s);
}
});
</script>
<style type="text/css">
#div_content{padding:0px; margin:0px; border:1px solid #000000; width:180px; height:100px; overflow:hidden; font-size:50px;}
#div_mark{padding:0px; margin:0px; border:0px; border-top:1px solid #FF0000; height:0px;}
</style>
<div style="width:960px; margin:0 auto; padding-top:50px;">
<textarea id="txt_input" name="txt_input" rows="5" cols="20"></textarea> <<输入汉字
<div style="padding-top:10px;"><div id="div_content" name="div_content"></div></div>
</div>
自动设置DIV字体大小填充DIV
mysql 数据导入与导出
# 数据导出 mysqldump # 导出一个表 /usr/local/mysql/bin/mysqldump -u root -character-set=utf8 -p -h 127.0.0.1 db_name table_name > /root/table.sql # 导出一个库 /usr/local/mysql/bin/mysqldump -u root -character-set=utf8 -p -h 127.0.0.1 db_name > /root/db.sql # 数据导入 source /usr/local/mysql/bin/mysql -h localhost -u root -p use db_name; source /root/db.sql # 数据导入 mysql /usr/local/mysql/bin/mysql -h localhost -u root -p pwd db_name < /root/db.sql
python 连接 mysql
自制 python 批量压图程序
自个儿的相册缩图程序, 图个方便~ python 写的, 纯当练练手.
#!/usr/bin/env python
#coding=utf-8
import Image
import os
import sys
def go(in_dir, out_dir="", recursion="1"):
'''
准备,开始!
'''
if out_dir=="":
out_dir = in_dir
list_dir(in_dir, out_dir, recursion)
def list_dir(in_dir, out_dir, recursion):
'''
递归子目录, 如果是图片则开始压图, 如果是子目录,继续深入
'''
for listName in os.listdir(in_dir):
if os.path.isdir(in_dir+listName):
childInDirName = in_dir+listName+'/'
childOutDirName = out_dir+listName+'/'
if os.path.isdir(childOutDirName)==False:
os.mkdir(childOutDirName)
#print childInDirName+"\t"+childOutDirName
if recursion=="1":
list_dir(childInDirName, childOutDirName, recursion)
elif os.path.isfile(in_dir+listName):
base, ext = os.path.splitext(in_dir+listName)
if ext!="" and ext.lower()==".jpg":
#print in_dir+listName
make_thumb(in_dir+listName, out_dir+listName)
def make_thumb(in_file, out_file):
'''
批量压图
in_dir : 输入目录
out_dir : 输出目录
recursion : 递归子目录
'''
#输出图片宽不超过800, 高不超过600
outMaxWidth = 800.0
outMaxHeight = 600.0
im = Image.open(in_file)
#print str(im.size[0]) + "__" + str(im.size[1]) + "\n"
imWidth = im.size[0]
imHeight = im.size[1]
proportion = wProportion = hProportion = 1.0
if imWidth>outMaxWidth:
wProportion = (outMaxWidth*100/imWidth)/100.0
if imHeight>outMaxHeight:
hProportion = (outMaxHeight*100/imHeight)/100.0
if wProportion!=1 or hProportion!=1:
proportion = min(wProportion, hProportion)
#开始生成缩略图
outWidth = imWidth*proportion
outHeight = imHeight*proportion
thumb = im.resize((int(outWidth), int(outHeight)), Image.ANTIALIAS)
thumb.save(out_file, quality=100)
print out_file
if __name__ == '__main__':
go("D:/temp/", "D:/temp2/", "1")
print "done"
类MSN好友上线提示框
<script language="JavaScript">
//自制类似MSN好友上线通过的弹出框
function popup(popup_name, div_id, div_width, div_height, ifr_src){
this.popupName = popup_name;
this.divId = div_id;
this.divWidth = div_width;
this.divHeight = div_height;
this.ifrSrc = ifr_src;
this.divObj = "";
this.IE = 10; //浏览器版本
this.p = 3; //每次增加OR减少3px
this.t = 10; //多长时间一次
//展开
this.open = function (){
var newHeight = parseInt(this.divObj.style.height)+this.p;
var newTop = parseInt(this.divObj.style.top)-this.p;
if (newHeight<=this.divHeight){
this.divObj.style.height = newHeight+"px";
if(this.IE<7){
this.divObj.style.top = newTop+"px";
}
window.setTimeout(this.popupName+".open()", this.t);
}else {
this.divObj.style.height = this.divHeight+"px";
}
}
//缩小
this.close = function (){
var newHeight = parseInt(this.divObj.style.height)-this.p;
var newTop = parseInt(this.divObj.style.top)+this.p;
if (newHeight>=0){
this.divObj.style.height = newHeight+"px";
if(this.IE<7){
this.divObj.style.top = newTop+"px";
}
window.setTimeout(this.popupName+".close()", this.t);
}else {
this.divObj.style.height = "0px";
}
}
//改变位置
this.move = function (){
var scrollTop = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop;
var clientHeight = document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
var newTop = parseInt(scrollTop+(clientHeight-this.divObj.offsetHeight-1));
this.divObj.style.top = newTop+'px';
}
//创建DIV
this.create = function (){
if(navigator.appName == "Microsoft Internet Explorer"){
var userAgent = navigator.userAgent;
var s = 'MSIE';
this.IE = parseFloat(userAgent.substr(userAgent.indexOf(s) + s.length));
if(this.IE>=7){
this.p = 3 * parseInt(this.p);
}
}
if (document.getElementById(this.divId)){
this.divObj = document.getElementById(this.divId);
}else {
this.divObj = document.createElement("div");
document.body.appendChild(this.divObj);
this.divObj.id = this.divId;
}
this.divObj.style.cssText = "width:"+this.divWidth+"px; height:0px; z-index:9999; overflow:hidden;";
this.divObj.innerHTML = '<div style="position:relative; width:'+this.divWidth+'px; height:'+this.divHeight+'px;"><img alt="关闭" style="border:1px solid #000; width:15px; height:15px; position:absolute; z-index:10000; cursor:pointer; right:14px; top:14px;" src="http://van.ipart.cn/images2/space.gif" onclick="'+this.popupName+'.close();"><iframe id="'+this.divId+'_ifr" src='+this.ifrSrc+' frameborder="0" scrolling="no" width="100%" height="100%" allowtransparency="true"></iframe></div>';
if(this.IE<7){
this.divObj.style.position = 'absolute';
this.divObj.style.right = '0px';
this.divObj.style.top = '0px';
this.move();
var updPosition = this.popupName+'.move();';
window.attachEvent("onscroll", function(){eval(updPosition);});
window.attachEvent("onresize", function(){eval(updPosition);});
}else {
this.divObj.style.position = 'fixed';
this.divObj.style.right = '0px';
this.divObj.style.bottom = '0px';
}
this.open();
}
//启动
this.create();
}
//调用方式
popupObj = new popup("popupObj", "popup_notifications", "295", "245", "http://hi.baidu.com/ui/text/refer.html");
</script>
windows 下安装 Cassandra
1, 安装好JAVA6
我下载的 jdk-6u6-windows-i586-p.exe 安装在 C:\Program Files\Java\jdk1.6.0_06 目录中
2, 下载好Cassandra
下载地址 http://incubator.apache.org/cassandra/ 解压到要安装的目录, 我下载的 0.5.1 版本解压在 D:\cassandra 目录中
ubuntu下安装lampp+memcache
##########################
# LAMPP部分
##########################
1, 下载 http://www.apachefriends.org/zh_cn/xampp-linux.html
2, 安装
sudo su #切换到root用户用户 tar xvfz xampp-linux-1.7.3a.tar.gz -C /opt #安装
就这样结束了。XAMPP 被安装在 /opt/lampp 目录下。
SHELL脚本编程入门
SHELL脚本编程入门
#!/bin/bash # 0, 上面这一行,也就是文件第一行格式内容固定不变 # 1, 注释 # 第一行以下的内容中#以后的内容都是注释 # 2, 执行 abc.sh sh /your_path/abc.sh # 3, 打印 echo "abc" # 4, 变量 STR="abc" #等号两边不能有空格 echo $STR echo ${STR} echo "123${STR}456" echo "123\${STR}456" echo '123${STR}456' # 5, 字符串连接 STR1="abc" STR2="def" STR3="${STR1}${STR2}" echo ${STR3} # 6, 将一个shell命令的结果赋值给变量 DATE_STR=`date +%Y-%m-%d` echo ${DATE_STR} # 7, 函数,先定义后调用 _log() { echo "arguments: ${1}, ${2}" } _log "abc" "def" # 8, if A="a" B="b" C="c" if [ "${A}" = "${B}" ] ; then #等号两边要有空格 echo "a==b" elif [ "${A}" = "${C}" ] ; then echo "a==c" else echo "a!=b , a!=c" fi # 9, 提示用户输入内容并赋值给变量 echo "input: " read STR echo ${STR} # 10, 变量相加/减/乘/除 kuco@ubuntu:~$ A=1 kuco@ubuntu:~$ B=A+1 kuco@ubuntu:~$ echo ${B} A+1 #没有得到我们预想的2 kuco@ubuntu:~$ B=$((${A}+1)) #这种方法减/乘/除 同样适用 kuco@ubuntu:~$ echo ${B} 2 #成功! kuco@ubuntu:~$ B=$(expr ${A} + 2) #这种方法也行,注意中间有空格 kuco@ubuntu:~$ echo ${B}