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How do we control web page caching, across all browsers?
...lidate
Expires: 0
Cache-Control: must-revalidate
Expires: Sat, 12 Oct 1991 05:00:00 GMT
Pragma: no-cache (https only)
Vary: * (https only)
Combining the above gives us this solution which works for Chrome 28, FireFox 23, IE8, Safari 5.1.7, and Opera 12.15: Cache-Control: no-store, must-revalidate ...
数据结构与本地数据库 05：搜索、倒序与重复导入 · App Inventor 2 中文网
... 数据结构与本地数据库 05：搜索、倒序与重复导入 课程首页 · 全部知识课程 · 返回专题主页
这课解决什么
先预测，再运行
开始实战
新增或调整的组...
JSON datetime between Python and JavaScript
...isoformat())
The example datetime object would be serialized as:
'"2011-05-25T13:34:05.787000"'
This value, once received in the Javascript layer, can construct a Date object:
var d = new Date("2011-05-25T13:34:05.787000");
As of Javascript 1.8.5, Date objects have a toJSON method, which ret...
Bash array with spaces in elements
...clarations of $FILES should work:
FILES=(2011-09-04\ 21.43.02.jpg
2011-09-05\ 10.23.14.jpg
2011-09-09\ 12.31.16.jpg
2011-09-11\ 08.43.12.jpg)
or
FILES=("2011-09-04 21.43.02.jpg"
"2011-09-05 10.23.14.jpg"
"2011-09-09 12.31.16.jpg"
"2011-09-11 08.43.12.jpg")
or
FILES[0]="2011-09-04 21.43.02.jpg...
You can't specify target table for update in FROM clause
... chefID IS NOT NULL
OR gehalt < (
SELECT MAX (
gehalt * 1.05
)
FROM pers MA
WHERE MA.chefID = p.chefID
)
)
...
UPDATE pers P
SET P.gehalt = P.gehalt * 1.05
WHERE PersId
IN (
SELECT PersId
FROM test2
)
DROP TABLE test2;
or
UPDATE Pers P, (
SELECT PersId
FR...
Recommendation for compressing JPG files with ImageMagick
...(comprobed compression)
a very tiny gausssian blur to optimize the size (0.05 or 0.5 of radius) depends on the quality and size of the picture, this notably optimizes the size of the jpeg.
Strip any comment or exif tag
in imagemagick should be
convert -strip -interlace Plane -gaussian-blur 0.05 -...
编程基础与事件状态 05：用过程集中刷新界面 · App Inventor 2 中文网
... 编程基础与事件状态 05：用过程集中刷新界面 课程首页 · 全部知识课程 · 返回专题主页
这课解决什么
先预测，再运行
开始实战
新增或调整的组件...
Printing leading 0's in C?
...
printf("%05d", zipCode);
The 0 indicates what you are padding with and the 5 shows the length of the integer number. For example if you use "%02d" (Useful for dates) this would only pad zeros for numbers in the ones column ie.(06 in...
游戏中的算法与计算思维 05：延时翻回与输入锁 · App Inventor 2 中文网
... 游戏中的算法与计算思维 05：延时翻回与输入锁 课程首页 · 全部知识课程 · 返回专题主页
这课解决什么
先预测，再运行
开始实战
新增或调整的组件
...
How do I import CSV file into a MySQL table?
...<pre> first_name,last_name,dob,phone_number,email, name,lastName,12-05-2018,54545,faiz@gmail.com, name1,lastName1,2018-05-12,456,faiz1@gmail.com, name2,lastName2,2018-05-12,456,faiz2@gmail.com, name3,lastName3,2018-05-22,456,faiz3@gmail.com, name4,lastName4,1988-05-22,456,faiz4@gmail.com, nam...