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File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
...权限
常见用途
文件完整性验证
数据校验和计算
安全文件传输验证
备份文件一致性检查
文件去重比较
密码存储（建议使用加盐哈希）
相关功能
可以使用 Juan Antonio 的 Terminal 扩...
糯米推全景地图 让竞争对手们如何接招？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...小缩影。糯米语音搜索，度秘等人工智能O2O入口，百度大数据在O2O的应用，如交叉销售和精准营销的探索，都是这盘技术O2O棋局的落子。全景地图15天上线，说明糯米在新美大整合期的狼性不可小觑。说到底，全景地图是强化百...
Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，对于简单的类型会尝试转换成字符串返回，对于复杂的数据类型，建议以字符串形式的json返回。
evaluateJavascript方法必须在UI线程（主线程）调用，因此onReceiveValue也执行在主线程。
疑问解答
Alert无法弹出
你应该是没有设...
Shared-memory objects in multiprocessing
...es (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized and sent between processes.
There are a wealth of parallel processing libraries and approaches...
SQLAlchemy IN clause
...rnative way is using raw SQL mode with SQLAlchemy, I use SQLAlchemy 0.9.8, python 2.7, MySQL 5.X, and MySQL-Python as connector, in this case, a tuple is needed. My code listed below:
id_list = [1, 2, 3, 4, 5] # in most case we have an integer list or set
s = text('SELECT id, content FROM myTable W...
How to prevent errno 32 broken pipe?
Currently I am using an app built in python. When I run it in personal computer, it works without problems.
4 Answers
...
An efficient way to transpose a file in Bash
...
A Python solution:
python -c "import sys; print('\n'.join(' '.join(c) for c in zip(*(l.split() for l in sys.stdin.readlines() if l.strip()))))" < input > output
The above is based on the following:
import sys
for c i...
How do I perform the SQL Join equivalent in MongoDB?
...
$unwind - because data is denormalised correctly, else wrapped in arrays
Python code..
db.LeftTable.aggregate([
# connect all tables
{"$lookup": {
"from": "RightTable",
"localField": "ID",
...
How can I access Google Sheet spreadsheets only with Javascript?
...recipes" (JSON payloads) for core API requests
If you're not "allergic" to Python (if you are, just pretend it's pseudocode ;) ), I made several videos with more "real-world" samples of using the API you can learn from and migrate to JS if desired (NOTE: even though it's Python code, most API reques...
How do you log server errors on django sites
...
Note that using logging.exception('Some message') with python's standard logging module works just fine in a sginal handler for got_request_exception, if all you are looking to do is log out stack traces. In other words, the traceback is still available in got_request_exception....