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                [TOC] # 簡介 * 文本框也就是輸入框 * QLineEdit是單行文本輸入框 * QTextEdit是多行文本輸入框 QLineEdit ![](https://box.kancloud.cn/49ea811c3301e697d612ea3e57cbc8ef_1216x410.png) QTextEdit * QTextEdit類是一個多行文本框控件,可以顯示多行文本內容,當文本內容超過控件顯示范圍時,可以顯示水平或豎直滾動條 * QTextEdit不僅可以顯示文本還可以顯示html文檔 ![](https://box.kancloud.cn/90db5340dc4ef688afeed16425776b06_1034x262.png) # 單行文本框 ~~~ from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5.QtGui import * import sys # 創建個應用程序 需要加上參數 app = QApplication(sys.argv) # 創建窗口 widget = QWidget() # 修改窗口大小 widget.resize(300, 400) # 設置窗口的標題 widget.setWindowTitle('單行文本框') # 創建QLineEdit edit = QLineEdit() # 設置提示文字 edit.setPlaceholderText('請輸入qq') # 設置文字,默認填充 edit.setText('123456') # 設置輸入框的模式 edit.setEchoMode(QLineEdit.Password) # 設置最大長度 edit.setMaxLength(10) # 顯示設置父窗體 edit.setParent(widget) # 設置大小 edit.resize(150, 30) # 顯示窗口 widget.show() # 系統安全退出 sys.exit(app.exec()) ~~~ # 多行文本 ~~~ from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5.QtGui import * import sys # 創建個應用程序 需要加上參數 app = QApplication(sys.argv) # 創建窗口 widget = QWidget() # 修改窗口大小 widget.resize(300, 400) # 設置窗口的標題 widget.setWindowTitle('多行文本框') # 創建多行輸入框 edit = QTextEdit() # 設置提示文字 edit.setPlaceholderText('請輸入留言') # 輸入文字 edit.setPlainText("abc") # 清空一下 edit.clear() # 掛到父節點 edit.setParent(widget) # 顯示窗口 widget.show() # 系統安全退出 sys.exit(app.exec()) ~~~
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