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有没有关于CRC校验的扩展？ - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...通用，应该是有现成的 CRC 拓展，我稍后找一下再上传{:8_384:}参考：https://community.appinventor.mit.edu/t/can-someone-help-me-reproduce-this-code-using-the-blocks/60372/15CRC16 算法有多种，本扩展以 ASCII 格式接收数据并以 CRC16/CCITT-FALSE 格式给出结果...
Bottom Navigation Bar 底部导航栏 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...08px]Untitled[size=15.008px]328×585 15.4 KB
[size=15.008px]Screenshot_20240627-102612[size=15.008px]1080×2340 136 KB[size=15.008px]
[size=15.008px]https://community.appinventor.mit.edu/t/bottom-navigation-bar/120598
Setting environment variables on OS X
...variables.
# You also need to surround multiple values in quotes, see MAVEN_OPTS example below.
#
setenv JAVA_VERSION 1.6
setenv JAVA_HOME /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home
setenv GROOVY_HOME /Applications/Dev/groovy
setenv GRAILS_HOME /Applications/Dev/grails
setenv NEXU...
Java: Check if enum contains a given string?
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Richard HRichard H
32.9k3333 gold badges101101 silver badges130130 bronze badges
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How to get line count of a large file cheaply in Python?
...simplecount : 0.634400033951
bufcount : 0.468800067902
opcount : 0.602999973297
So the buffer read strategy seems to be the fastest for Windows/Python 2.6
Here is the code:
from __future__ import with_statement
import time
import mmap
import random
from collections import defaultdict
def mapcou...
What does void* mean and how to use it?
Today when I was reading others' code, I saw something like void *func(void* i); , what does this void* mean here for the function name and for the variable type, respectively?
...
Alternatives to gprof [closed]
...d by .. There are performance problems vWxYz taking 1/2, 1/4, 1/8, 1/16, 1/32 of the time, respectively. Sampling finds v easily. It is removed, leaving
xWzWxWYWxW.WxWYW
Now the program takes half as long to run, and now W takes half the time, and is found easily. It is removed, leaving
xzxYx.xY
Thi...
How to update only one field using Entity Framework?
Here's the table
16 Answers
16
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Is there an Eclipse line-width marker?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Git fetch remote branch
...1
– Nathan Hinchey
May 16 '17 at 16:32
Usually, I use git fetch, but the thing is what is the difference between git ...