Python + pyqt5 写一个 md5 生成器

来源：互联网发布：人工智能生活应用实例编辑：程序博客网时间：2024/06/16 18:44
学了一下pyqt5，写一个小程序来实践一下。
下图是程序界面：
这里写图片描述
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
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