在下面的代碼中 self.tableWidget.resize(self.width()-20,self.height()-20)

self.tableWidget.move(10,20)

這兩行沒有起作用？不知為何？

from PyQt5 import QtCore, QtGui, QtWidgets

from PyQt5.QtGui import QIcon

from PyQt5.QtWidgets import *

from PyQt5.QtCore import *

import pandas as pd

import numpy as np

class Ui_MainWindow(QMainWindow):

def __init__(self):

super(QtWidgets.QMainWindow,self).__init__()

self.setupUi(self)

self.retranslateUi(self)

def setupUi(self, MainWindow):

MainWindow.setObjectName("MainWindow")

MainWindow.resize(666, 488)

self.centralWidget = QtWidgets.QWidget(MainWindow)

self.centralWidget.setObjectName("centralWidget")

self.retranslateUi(MainWindow)

self.tableWidget = QtWidgets.QTableWidget(self.centralWidget)

self.tableWidget.setGeometry(QtCore.QRect(0, 40, self.geometry().width(), self.geometry().height()-40))

self.tableWidget.setObjectName("tableWidget")

self.tableWidget.setColumnCount(0)

self.tableWidget.setRowCount(0)

self.tableWidget.setStyleSheet("selection-background-color:pink")

self.tableWidget.setEditTriggers(QAbstractItemView.NoEditTriggers)

self.tableWidget.raise_()

self.pushButton = QtWidgets.QPushButton(self.centralWidget)

self.pushButton.setGeometry(QtCore.QRect(90, 20, 75, 23))

self.pushButton.setObjectName("pushButton")

self.pushButton.setText("打開")

MainWindow.setCentralWidget(self.centralWidget)

QtCore.QMetaObject.connectSlotsByName(MainWindow)

self.pushButton.clicked.connect(self.openfile)

self.pushButton.clicked.connect(self.creat_table_show)

def retranslateUi(self, MainWindow):

_translate = QtCore.QCoreApplication.translate

MainWindow.setWindowTitle(_translate("MainWindow", "一顆數據小白菜"))

def openfile(self):

###獲取路徑===================================================================

openfile_name = QFileDialog.getOpenFileName(self,'選擇文件','','Excel files(*.xlsx , *.xls)')

#print(openfile_name)

global path_openfile_name

###獲取路徑====================================================================

path_openfile_name = openfile_name[0]

def resizeEvent(self, e):

#self.tableWidget.setGeometry(QtCore.QRect(0, 40, self.geometry().width(), self.geometry().height()-40))

#QtWidgets.QWidget.resizeEvent(self, e)

self.tableWidget.resize(self.width()-20,self.height()-20)

self.tableWidget.move(10,20)

def creat_table_show(self):

###===========讀取表格，轉換表格，===========================================

if len(path_openfile_name) > 0:

input_table = pd.read_excel(path_openfile_name)

#print(input_table)

input_table_rows = input_table.shape[0]

input_table_colunms = input_table.shape[1]

#print(input_table_rows)

#print(input_table_colunms)

input_table_header = input_table.columns.values.tolist()

#print(input_table_header)

###===========讀取表格，轉換表格，============================================

###======================給tablewidget設置行列表頭============================

self.tableWidget.setColumnCount(input_table_colunms)

self.tableWidget.setRowCount(input_table_rows)

self.tableWidget.setHorizontalHeaderLabels(input_table_header)

###======================給tablewidget設置行列表頭============================

###================遍歷表格每個元素，同時添加到tablewidget中========================

for i in range(input_table_rows):

input_table_rows_values = input_table.iloc[[i]]

#print(input_table_rows_values)

input_table_rows_values_array = np.array(input_table_rows_values)

input_table_rows_values_list = input_table_rows_values_array.tolist()[0]

#print(input_table_rows_values_list)

for j in range(input_table_colunms):

input_table_items_list = input_table_rows_values_list[j]

#print(input_table_items_list)

# print(type(input_table_items_list))

###==============將遍歷的元素添加到tablewidget中并顯示=======================

input_table_items = str(input_table_items_list)

newItem = QTableWidgetItem(input_table_items)

newItem.setTextAlignment(Qt.AlignHCenter|Qt.AlignVCenter)

self.tableWidget.setItem(i, j, newItem)

###================遍歷表格每個元素，同時添加到tablewidget中========================

else:

self.centralWidget.show()

if name == "__main__":

import sys

app = QtWidgets.QApplication(sys.argv)

MainWindow = QtWidgets.QMainWindow()

ui = Ui_MainWindow()

ui.setupUi(MainWindow)

MainWindow.show()

sys.exit(app.exec_())

下面的代碼

from PyQt5.Qt import * #剛開始學習可以這樣一下導入

import sys,time

class Window(QWidget):

def __init__(self):

super().__init__()

self.setWindowTitle("QLineEdit 輸出模式的案例")

self.resize(400,400)

self.set_ui()

self.i = 1

def set_ui(self):

self.account_lineEdit = QLineEdit(self)

self.pwd_lineEdit = QLineEdit(self)

self.btn = QPushButton(self)

def resizeEvent(self, event):

widget_w = 150

widget_h = 30

widget_h_margin = 10

top_margin = 50

self.account_lineEdit.resize(self.width()-60,widget_h)

self.pwd_lineEdit.resize(widget_w,widget_h)

self.btn.setText("登 錄")

self.btn.resize(widget_w,widget_h)

x = (self.width() - widget_w)/2

y1 = top_margin

y2 = y1 + widget_h +widget_h_margin

y3 = y2 + widget_h +widget_h_margin

self.account_lineEdit.move(x,y1)

self.account_lineEdit.move(30,20)

self.pwd_lineEdit.move(x,y2)

self.btn.move(x,y3)

print(id(self.btn))

print(len(self.children()))

print("===",x,y1,y2,y3)

print("i = ",self.i)

self.i +=1

if name == "__main__":

app =QApplication(sys.argv)

window = Window()

window.show()

sys.exit(app.exec_())

下面的代碼正常

self.account_lineEdit.resize(self.width()-60,widget_h)

總結

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