Python这门语言很适合用来写些实用的小脚本，跑个自动化、爬虫、算法什么的，非常方便。
这也是很多人学习Python的乐趣所在，可能只需要花个礼拜入门语法，就能用第三方库去解决实际问题。我在Github上就看到过不少Python代码的项目，几十行代码就能实现一个场景功能，非常实用。
比方说仓库Python-master里的几个简单例子：
1、创建二维码
import pyqrcode import png from pyqrcode import QRCode # Text which is to be converted to QR code print("Enter text to convert") s = input(": ") # Name of QR code png file print("Enter image name to save") n = input(": ") # Adding extension as .pnf d = n + ".png" # Creating QR code url = pyqrcode.create(s) # Saving QR code as a png file url.show() url.png(d, scale=6)
2、从图片中截取文字
作者：朱卫军 链接：https://www.zhihu.com/question/282627359/answer/2521994250 来源：知乎 著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。 # extract text from a img and its coordinates using the pytesseract module import cv2 import pytesseract # You need to add tesseract binary dependency to system variable for this to work img = cv2.imread("img.png") # We need to convert the img into RGB format img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) hI, wI, k = img.shape print(pytesseract.image_to_string(img)) boxes = pytesseract.image_to_boxes(img) for b in boxes.splitlines(): b = b.split(" ") x, y, w, h = int(b[1]), int(b[2]), int(b[3]), int(b[4]) cv2.rectangle(img, (x, hI - y), (w, hI - h), (0, 0, 255), 0.2) cv2.imshow("img", img) cv2.waitKey(0)
3、判断闰年
def is_leap(year): leap = False if year % 4 == 0: leap = True if year % 100 == 0: leap = False if year % 400 == 0: leap = True return leap year = int(input("Enter the year here: ")) print(is_leap(year))
4、简易日历
作者：朱卫军 链接：https://www.zhihu.com/question/282627359/answer/2521994250 来源：知乎 著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。 from tkinter import * import calendar root = Tk() # root.geometry("400x300") root.title("Calendar") # Function def text(): month_int = int(month.get()) year_int = int(year.get()) cal = calendar.month(year_int, month_int) textfield.delete(0.0, END) textfield.insert(INSERT, cal) # Creating Labels label1 = Label(root, text="Month:") label1.grid(row=0, column=0) label2 = Label(root, text="Year:") label2.grid(row=0, column=1) # Creating spinbox month = Spinbox(root, from_=1, to=12, width=8) month.grid(row=1, column=0, padx=5) year = Spinbox(root, from_=2000, to=2100, width=10) year.grid(row=1, column=1, padx=10) # Creating Button button = Button(root, text="Go", command=text) button.grid(row=1, column=2, padx=10) # Creating Textfield textfield = Text(root, width=25, height=10, fg="red") textfield.grid(row=2, columnspan=2) root.mainloop()
5、打印图片分辨率
作者：朱卫军 链接：https://www.zhihu.com/question/282627359/answer/2521994250 来源：知乎 著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。 def jpeg_res(filename): """"This function prints the resolution of the jpeg image file passed into it""" # open image for reading in binary mode with open(filename,'rb') as img_file: # height of image (in 2 bytes) is at 164th position img_file.seek(163) # read the 2 bytes a = img_file.read(2) # calculate height height = (a[0] << 8) + a[1] # next 2 bytes is width a = img_file.read(2) # calculate width width = (a[0] << 8) + a[1] print("The resolution of the image is",width,"x",height) jpeg_res("img1.jpg")
这个项目只是作者平时工作用到的一些小脚本，可能也会帮助到你。作者虽然不是程序员，但他这种用代码解决问题的习惯会极大的提升效率，也会迸发出更多的创新思维。我觉得这样的代码每个人都可以写出来，只要慢慢积累多练习就可以。