pip?install?requests?-i?https://pypi.tuna.tsinghua.edu.cn/simple/

pip?install?PyQt5?-i?https://pypi.tuna.tsinghua.edu.cn/simple/

#?It's?importing?the?traceback?module.
import?traceback

#?Importing?all?the?classes?from?the?QtWidgets?module.
from?PyQt5.QtWidgets?import?*

#?Importing?all?the?classes?from?the?QtCore?module.
from?PyQt5.QtCore?import?*

#?Importing?all?the?classes?from?the?QtGui?module.
from?PyQt5.QtGui?import?*

#?It's?importing?the?requests?module.
import?requests

#?It's?importing?the?os?module.
import?os

#?It's?importing?the?sys?module.
import?sys

class?WallPaperUI(QWidget):
????def?__init__(self):
????????"""
????????A?constructor.?It?is?called?when?an?object?is?created?from?a?class?and?it?allows?the?class?to?initialize?the
????????attributes?of?a?class.
????????"""
????????super(WallPaperUI,?self).__init__()
????????self.init_ui()

????def?init_ui(self):
????????"""
????????This?function?initializes?the?UI.
????????"""
????????self.setWindowTitle('批量桌面壁紙下載器??公眾號(hào)：Python 集中營(yíng)')
????????self.setWindowIcon(QIcon('download.ico'))
????????self.resize(500,?200)

????????self.save_dir_path?=?QLineEdit()
????????self.save_dir_path.setPlaceholderText('桌面壁紙保存路徑')

????????self.save_dir_btn?=?QPushButton()
????????self.save_dir_btn.setText('保存路徑')
????????self.save_dir_btn.clicked.connect(self.save_dir_btn_click)

????????self.set_dwonload_num_label?=?QLabel()
????????self.set_dwonload_num_label.setText('設(shè)置下載數(shù)量：')

????????self.set_dwonload_num_in?=?QLineEdit()
????????self.set_dwonload_num_in.setPlaceholderText('例如：10')

????????self.start_btn?=?QPushButton()
????????self.start_btn.setText('立即下載')
????????self.start_btn.clicked.connect(self.start_btn_click)

????????self.brower?=?QTextBrowser()
????????self.brower.setReadOnly(True)
????????self.brower.setFont(QFont('宋體',?8))
????????self.brower.setPlaceholderText('處理進(jìn)程展示區(qū)域...')
????????self.brower.ensureCursorVisible()

????????hbox?=?QHBoxLayout()

????????left_box?=?QVBoxLayout()
????????left_box.addWidget(self.brower)

????????right_box?=?QVBoxLayout()

????????right_form_box?=?QFormLayout()
????????right_form_box.addRow(self.save_dir_path,?self.save_dir_btn)
????????right_form_box.addRow(self.set_dwonload_num_label,?self.set_dwonload_num_in)

????????right_h_box?=?QHBoxLayout()
????????right_h_box.addWidget(self.start_btn)

????????right_box.addLayout(right_form_box)
????????right_box.addLayout(right_h_box)

????????hbox.addLayout(left_box)
????????hbox.addLayout(right_box)

????????self.download_thread?=?DownloadWork(self)
????????self.download_thread.finished.connect(self.finished)
????????self.download_thread.message.connect(self.show_message)

????????self.setLayout(hbox)

????def?show_message(self,?text):
????????cursor?=?self.brower.textCursor()
????????cursor.movePosition(QTextCursor.End)
????????self.brower.append(text)
????????self.brower.setTextCursor(cursor)
????????self.brower.ensureCursorVisible()

????def?save_dir_btn_click(self):
????????directory?=?QFileDialog.getExistingDirectory(self,?'選擇文件夾',?os.getcwd())
????????self.save_dir_path.setText(directory)

????def?start_btn_click(self):
????????self.start_btn.setEnabled(False)
????????self.download_thread.start()

????def?finished(self,?finished):
????????if?finished?is?True:
????????????self.start_btn.setEnabled(True)

class?DownloadWork(QThread):
????finished?=?pyqtSignal(bool)
????message?=?pyqtSignal(str)

????def?__init__(self,?parent=None):
????????super(DownloadWork,?self).__init__(parent)
????????self.working?=?True
????????self.parent?=?parent

????def?__del__(self):
????????self.working?=?False

????def?run(self)?->?None:
????????try:
????????????save_dir_path?=?self.parent.save_dir_path.text().strip()
????????????set_dwonload_num_in?=?self.parent.set_dwonload_num_in.text().strip()

????????????self.message.emit('保存路徑：{}'.format(save_dir_path))
????????????self.message.emit('下載數(shù)量：{}'.format(set_dwonload_num_in))

????????????if?save_dir_path?==?'':
????????????????self.message.emit('出現(xiàn)錯(cuò)誤：保存路徑不能為空！')
????????????????return

????????????if?set_dwonload_num_in?==?'':
????????????????self.message.emit('出現(xiàn)錯(cuò)誤：下載數(shù)量不能為空！')
????????????????return

????????????for?n?in?range(int(set_dwonload_num_in)):
????????????????pic_url?=?f"http://bingw.jasonzeng.dev?resolution=UHD&index={n}"
????????????????self.message.emit('正在下載第{0}張壁紙！'.format(str(n)))
????????????????with?requests.get(pic_url)?as?r:
????????????????????with?open(os.path.join(save_dir_path,?str(n)?+?'.jpg'),?"wb")?as?w:
????????????????????????w.write(r.content)
????????????self.message.emit('全部壁紙下載完成！')
????????????self.finished.emit(True)
????????except:
????????????traceback.print_exc()
????????????self.message.emit('執(zhí)行錯(cuò)誤，請(qǐng)檢查參數(shù)項(xiàng)是否設(shè)置正確！')
????????????self.finished.emit(True)

#?A?special?variable?in?Python?that?evaluates?to?True?if?the?module?is?being?run?as?the?main?program.
if?__name__?==?'__main__':
????app?=?QApplication(sys.argv)
????main?=?WallPaperUI()
????main.show()
????sys.exit(app.exec_())