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AppInventor2中的二进制数据以什么样的形式传递？字节列表、字节数组是什么...
1、byte[] 类型（字节数组）的字段：App Inventor 无法直接处理字节数组，但它们可以作为扩展之间的通用 Object 类型变量进行交换。
MQTT拓展中的字节数组的处理方式就是这种，直接转换成byte[]：
@SimpleFunction(description = "Publishe...
How to validate inputs dynamically created using ng-repeat, ng-show (angular)
...<div ng-repeat="social in formData.socials">
<ng-form name="urlForm">
<input type="url" name="socialUrl" ng-model="social.url">
<span class="alert error" ng-show="urlForm.socialUrl.$error.url">URL error</span>
</ng-form>
</...
Reload Flask app when template file changes
...e works just fine:
from flask import Flask, render_template, request, url_for, redirect
app = Flask(__name__)
app.config["TEMPLATES_AUTO_RELOAD"] = True
See more on http://flask.pocoo.org/docs/1.0/config/
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Is it possible to display inline images from html in an Android TextView?
... java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawabl...
Class method decorator with self arguments?
...
def check_authorization(f):
def wrapper(*args):
print args[0].url
return f(*args)
return wrapper
class Client(object):
def __init__(self, url):
self.url = url
@check_authorization
def get(self):
print 'get'
>>> Client('http://www.googl...
Sending emails with Javascript
...rmation in it. I suspect that it'd be to do with the maximum length of the URL being exceeded.
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Retrieve column names from java.sql.ResultSet
...ple {
public void run(String sql) {
// JDBC driver name and database URL
String JDBC_DRIVER = "com.mysql.jdbc.Driver";
String DB_URL = "jdbc:mysql://localhost/demo";
// Database credentials
String USER = "someuser"; // Fake of course.
String PASS = "somepass"; // This too!...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...ted my mac..don't know what messed up during boot
– murli
Apr 8 at 14:31
2
I'm also curious to kn...
Installing specific package versions with pip
... if you do a pip install -Iv MySQL_python==1.2.2 you'll find that the PyPI URL link does not work for MySQL_python v1.2.2. You can verify this here: http://pypi.python.org/pypi/MySQL-python/1.2.2
The download link 404s and the fallback URL links are re-directing infinitely due to sourceforge.net's ...
How can I upload files asynchronously?
...nction () {
$.ajax({
// Your server script to process the upload
url: 'upload.php',
type: 'POST',
// Form data
data: new FormData($('form')[0]),
// Tell jQuery not to process data or worry about content-type
// You *must* include these options!
cache: false,
c...