Python |为基于控制台的应用程序创建简单动画
原文:https://www . geesforgeks . org/python-create-simple-animation-for-console-application/
众所周知，Python 是一种脚本语言，可以很容易地用于自动化简单的任务。在本文中，我们将学习如何创建一个简单的基于控制台的动画，它可以在开发基于控制台的项目作为实用程序时使用。
我们将尝试复制如下所示的加载动画:
我们将使用以下模块–
sys module
os module
time module
下面是 Python 实现:
# importing the necessary packages
import time
import sys
import os
# Function for implementing the loading animation
def load_animation():
# String to be displayed when the application is loading
load_str = "starting your console application..."
ls_len = len(load_str)
# String for creating the rotating line
animation = "|/-\\"
anicount = 0
# used to keep the track of
# the duration of animation
counttime = 0
# pointer for travelling the loading string
i = 0
while (counttime != 100):
# used to change the animation speed
# smaller the value, faster will be the animation
time.sleep(0.075)
# converting the string to list
# as string is immutable
load_str_list = list(load_str)
# x->obtaining the ASCII code
x = ord(load_str_list[i])
# y->for storing altered ASCII code
y = 0
# if the character is "." or " ", keep it unaltered
# switch uppercase to lowercase and vice-versa
if x != 32 and x != 46:
if x>90:
y = x-32
else:
y = x + 32
load_str_list[i]= chr(y)
# for storing the resultant string
res =''
for j in range(ls_len):
res = res + load_str_list[j]
# displaying the resultant string
sys.stdout.write("\r"+res + animation[anicount])
sys.stdout.flush()
# Assigning loading string
# to the resultant string
load_str = res
anicount = (anicount + 1)% 4
i =(i + 1)% ls_len
counttime = counttime + 1
# for windows OS
if os.name =="nt":
os.system("cls")
# for linux / Mac OS
else:
os.system("clear")
# Driver program
if __name__ == '__main__':
load_animation()
# Your desired code continues from here
# s = input("Enter your name: ")
s ="David"
sys.stdout.write("Hello "+str(s)+"\n")
输出:
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