clock

问题 I'm trying to add a digital clock to my Kivy program, it seems to be having trouble. Here is the .py: import kivy kivy.require('1.10.0') from kivy.lang import Builder from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition from kivy.app import App from kivy.uix.label import Label from kivy.uix.image import Image from kivy.uix.floatlayout import FloatLayout from kivy.uix.stacklayout import StackLayout from kivy.clock import Clock from kivy.properties import ObjectProperty from

问题 I'm creating an android application that gets the current time in a different country/time-zone. I'm making it as there aren't many other apps on the marketplace that do the same job. I've got an analogue clock with a digital clock underneath on my app, how do I change the time on the clocks - take on or off a number of hours? For example, I may want the clock to display the time in Florida, so for me that'd be -6 hours. Although I'm proficient in other programming languages; mainly .NET I'm

问题 After the long time I spent getting an analog clock to work, I am trying to make a digital one ( sigh ). I am trying to do this with 10 PNGs with the numbers 0 - 9. Each digit of the clock would be an image. The only problem with this is retrieving the certain digit from the current time. I've tried converting the time to a string and using the characterAtIndex, but that doesn't seem to work. What would be the best way to get around this? 回答1: You could use NSDateComponents and NSCalendar :

问题 I'm trying to make some kind of "deadline clock" in python. There is lot of topics about time difference calculations and I followed some and put together this kind of code: import datetime from dateutil.relativedelta import relativedelta # Get current time: today = datetime.date.today() timenow = datetime.datetime.now() current_time = str(today) + " " + str(timenow.strftime("%H:%M:%S")) # Set deadline: deadline = "2019-12-12 15:00:00" # Calculate difference: start = datetime.datetime

问题 As has been known for a while (see, e.g., this old question, and bug reports that pop when you google this), clock_gettime() doesn't appear to report back time monotonically. To rule out any silly error I might have overseen, here is the relevant code (excerpt from larger program): <include time.h> long nano_1, nano_2; double delta; struct timespec tspec, *tspec_ptr; clock_gettime(CLOCK_MONOTONIC_RAW, tspec_ptr); nano_1 = tspec.tv_nsec; sort_selection(sorted_ptr, n); clock_gettime(CLOCK

问题 I'm making a HTML5 Canvas Game with a rectangle that moves around the canvas. The objective is to dodge multiple Balls moving across the canvas for as long as possible. But i'm struggling to put a Timer to show your Time/Score when a ball hits the rectangle. (The rectangle is moved by the UP,DOWN,LEFT and RIGHT keys). Anyone with knowledge of this that could help me out would be much appreciated, thanks. 回答1: Here’s how to integrate a timer into your game: Set the startingTime just before you

问题 I want to run a function every 5 minutes and have it synced with the clock. If I use time.sleep(60*5), the time starts to drift because my function adds a tiny bit of processing time. Is this a good way of running my function synced with the clock or is there a better way in python? def run(condition): def task(): #run data here pass runOnce = True while condition: if dt.datetime.now().minute % 5 == 0 and dt.datetime.now().second == 0 and runOnce: runOnce = False task() elif dt.datetime.now()

问题 I was given some very good hints in this forum about how to code a clock object in Python 2. I've got some code working now. It's a clock that 'ticks' at 60 FPS: import sys import time class Clock(object): def __init__(self): self.init_os() self.fps = 60.0 self._tick = 1.0 / self.fps print "TICK", self._tick self.check_min_sleep() self.t = self.timestamp() def init_os(self): if sys.platform == "win32": self.timestamp = time.clock self.wait = time.sleep def timeit(self, f, args): t1 = self

问题 How do I call clock() in C++ ? For example, I want to test how much time a linear search takes to find a given element in an array. 回答1: #include <iostream> #include <cstdio> #include <ctime> int main() { std::clock_t start; double duration; start = std::clock(); /* Your algorithm here */ duration = ( std::clock() - start ) / (double) CLOCKS_PER_SEC; std::cout<<"printf: "<< duration <<'\n'; } 回答2: An alternative solution, which is portable and with higher precision, available since C++11, is

问题 I wonder if there is a way to display the current time in the R command line, like in MS DOS, we can use Prompt $T $P$G to include the time clock in every prompt line. Something like options(prompt=paste(format(Sys.time(), "%H:%M:%S"),"> ")) will do it, but then it is fixed at the time it was set. I'm not sure how to make it update automatically. 回答1: Chase points the right way as options("prompt"=...) can be used for this. But his solutions adds a constant time expression which is not what