本文实例为大家分享了python+pyqt5编写md5生成器的具体代码，供大家参考，具体内容如下

学了一下pyqt5，写一个小程序来实践一下。

下图是程序界面：

下面是代码：

import hashlib, os, sysfrom PyQt5.QtGui import QFont, QIconfrom PyQt5.QtWidgets import (QFileDialog, QGridLayout, QLineEdit, QTextEdit,QLabel, QWidget, QToolTip, QPushButton, QApplication)from PyQt5.QtCore import QCoreApplication#小文件的处理函数def get_md5_small(file_path): md5 = None if os.path.exists(file_path) and os.path.isfile(file_path): with open( file_path, 'rb' ) as f: md5_obj = hashlib.md5() md5_obj.update( f.read() ) hash_code = md5_obj.hexdigest() md5 = str(hash_code).lower() return md5#大文件的处理函数def get_md5_big(file_path): md5 = None if os.path.exists(file_path) and os.path.isfile(file_path): with open( file_path, 'rb' ) as f: md5_obj = hashlib.md5() while True: d = f.read(8096) if not d: break md5_obj.update(d) hash_code = md5_obj.hexdigest() md5 = str( hash_code ).lower() return md5class MainBody(QWidget): def __init__(self): super(MainBody, self).__init__() self.init() def init(self): #布局 grid = QGridLayout() self.setLayout(grid) grid.setSpacing(10) #文件路径 self.m_tedit = QTextEdit() self.m_tedit.setToolTip( u'可以拖拽文件到这里来' ) grid.addWidget(self.m_tedit, 1, 0, 2, 3) #四个按钮 self.m_select_btn = QPushButton(u'选择文件') self.m_select_btn.clicked.connect( self.select_func ) self.m_generate_btn = QPushButton(u'生成') self.m_generate_btn.clicked.connect( self.generate_func ) self.m_clear_btn = QPushButton(u'清空') self.m_clear_btn.clicked.connect( self.clear_func ) self.m_copy_btn = QPushButton(u'复制') self.m_copy_btn.clicked.connect( self.copy_func ) grid.addWidget(self.m_select_btn, 3, 0) grid.addWidget(self.m_generate_btn, 3, 1) grid.addWidget(self.m_clear_btn, 3, 2) grid.addWidget(self.m_copy_btn, 5, 1) #md5的输出区域 self.m_output = QLineEdit() grid.addWidget(self.m_output, 4, 0, 1, 3) self.setGeometry(300,300,300,200) self.setWindowTitle(u"md5生成器") self.setWindowIcon(QIcon('icon.png')) self.show() #选择文件 def select_func(self): filename, ok = QFileDialog.getOpenFileName(self, "Open file", "C:/Users/Administrator/Desktop") print(os.path.getsize(filename)) self.m_tedit.setText( filename ) self.m_output.clear() #生成md5按钮 def generate_func(self): path = self.m_tedit.toPlainText() if path.startswith( 'file:///' ): path = path[8:] if os.path.exists(path) and os.path.isfile(path): #200M以上的当作大文件 if os.path.getsize(path) >= 200*1024*1204: md5 = get_md5_big( path ) else: md5 = get_md5_small( path ) self.m_output.setText( md5 ) def clear_func(self): self.m_tedit.clear() self.m_output.clear() #复制 def copy_func(self): clipboard = QApplication.clipboard() clipboard.setText( self.m_output.text() )if __name__ == "__main__": app = QApplication(sys.argv) mb = MainBody() sys.exit( app.exec_() )

最后用 pyinstaller 打包成 exe 文件

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。