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Office在线预览及PDF在线预览的实现方式大集合 - 更多技术 - 清泛网 - 专注...
...可以导出PDF文件,然后再利用免费的swftools.exe工具生成swf格式的Flash文件,网页中加载flexpaper免费开源工具(有广告)实现Flash文件的预览。
优点:
1、有效的保护的源文件及文件的复制,不可复制也是缺点。
2、源码是自己的...
MFC 中CImageList的用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的应用技巧
1.1设置图像控件CListCtrl::SetImageList的调用格式如下:
CImageList* SetImageList(CImageList* pImageList,int nImageList);
其返回值是指向前一个图像列表控件的一个指针,如果不存在前一个图像列表则为NULL;其中参数pI...
App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网
...表,包含服务UUID、特征UUID 和特征名称(如果有)。列表格式为 ((服务 1 特征 1 名称 1) (服务 2 特征 2 名称 2) …)。如果未连接任何设备或不支持低功耗蓝牙,则将返回空列表。
DeviceList – 以字符串形式返回BLE设备的...
Parsing JSON using Json.net
I'm trying to parse some JSON using the JSon.Net library. The documentation seems a little sparse and I'm confused as to how to accomplish what I need. Here is the format for the JSON I need to parse through.
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How do I modify fields inside the new PostgreSQL JSON datatype?
With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious:
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What is the minimum valid JSON?
I've carefully read the JSON description http://json.org/ but I'm not sure I know the answer to the simple question. What strings are the minimum possible valid JSON?
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Fastest way to check if a string is JSON in PHP?
I need a really, really fast method of checking if a string is JSON or not. I feel like this is not the best way:
30 Answer...
Reading JSON from a file?
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The json.load() method (without "s" in "load") can read a file directly:
import json
with open('strings.json') as f:
d = json.load(f)
print(d)
You were using the json.loads() method, which is used for string arguments...
Difference between JSON.stringify and JSON.parse
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JSON.stringify turns a JavaScript object into JSON text and stores that JSON text in a string, eg:
var my_object = { key_1: "some text", key_2: true, key_3: 5 };
var object_as_string = JSON.stringify(my_object);
// "{"key...
VM 磁盘空间扩容引起的一些问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...可以认到LUN 60 LUN80 容量显示正确,但不能正确识别文件格式。在ESX1的数据储存中认到LUN60 LUN80的准确容量,在ESX2的数据存储中只能认到LUN60的正确容量,LUN80根本找不到。
ESX2主机在设备
LUN 60一切正常。
为了测...