小知识备忘
MYSQL:
GRANT ALL PRIVILEGES ON bbs.* TO test@localhost IDENTIFIED BY 'test';
set global wait_timeout=100;
show variables like 'max_allowed_packet';
python IDE:
PyScripter
PyCharm
Eclipse pydev
PythonWin
IDLE
Java通信框架:
comet mina netty
nginx rewrite:
if ($host = "tsw202.com"){rewrite ^/(.*)$ http://www.tsw202.com/$1 permanent;}
if ($host = "tsw202.cn"){rewrite ^/(.*)$ http://www.tsw202.com/$1 permanent;}
if ( $host ~* "^(.*)\.tsw202\.cn$") {
set $domain $1;
rewrite ^/(.*) http://$domain.tsw202.com/$1 break;
}
破解小知识:
破解VC的用 IDA OllyDbg SoftSnoop Api Monitor
破解C#的用.net reflector
破解Delphi的用Dede IDA OllyDbg
破解VB的用vb_decompiler vb_injector OllyDbg
经纬度记录筛选:
$lat=20;
$lon=20;//执行查询,算出该用户与所有其他用户的距离,取出最近的10个
$sql='select * from users_location order by ACOS(SIN(('.$lat.' * 3.1415) / 180 ) *SIN((latitude * 3.1415) / 180 ) COS(('.$lat.' * 3.1415) / 180 ) * COS((latitude * 3.1415) / 180 ) *COS(('.$lon.' * 3.1415) / 180 - (longitude * 3.1415) / 180 ) ) * 6380 asc limit 10';
iframe父/子页面:
iframe中子页面给父页面的Div赋值
parent.window.document.getElementByIdx_x('id').innerHTML='';
调用父页面的方法
window.parent.window.methodName();
刷新父页面
window.parent.location.reload();
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父页面调用iframe内的JS的方法,无须给iframe加id,只需用Jq选中iframe就行了
$("#id").find("iframe")[0].contentWindow.func()
PHP写utf8 BOM头:
fwrite($fp,"\xEF\xBB\xBF");
fwrite($f, pack("CCC", 0xef,0xbb,0xbf));