本人小白一枚，之前自学了一点python基础，只写过一些简单的的程序，前两天看到论坛里有大佬自己做了个图形化界面的工具，想到自己还没接触过图形化界面，然后想自己动手写个图形化小工具，最后决定用pyside2库来写个最基础的简易计算器，看英文官方文档实在是太头疼了，昨天来论坛求中文资料未果，于是决定硬着头皮看吧，一边看一边百度，终于做出来了嘿嘿，就是功能简单了些，本来想打包成exe的，发现打包报错了，最后的exe文件打开不能用，就没继续研究了，有兴趣的可以下载看看，共同学习，希望大佬们可以多多指正，源码放到蓝奏云了：https://haohaizi.lanzouj.com/i3Wm0de32pc
再放一张运行的动图供大家预览
下边把源码也贴出来吧，不过只有这个源码运行不了，还需要下载ui文件，配合起来才能运行
import PySide2.QtWidgets as QtWidgets
from PySide2.QtUiTools import QUiLoader
import time
class SimpleCalculator():
def __init__(self):
self.ui = QUiLoader().load('SimpleCalculator.ui') #加载ui界面
# 数字按键
self.ui.pushButton_0.clicked.connect(lambda:self.click_num('0'))
self.ui.pushButton_1.clicked.connect(lambda:self.click_num('1'))
self.ui.pushButton_2.clicked.connect(lambda:self.click_num('2'))
self.ui.pushButton_3.clicked.connect(lambda:self.click_num('3'))
self.ui.pushButton_4.clicked.connect(lambda:self.click_num('4'))
self.ui.pushButton_5.clicked.connect(lambda:self.click_num('5'))
self.ui.pushButton_6.clicked.connect(lambda:self.click_num('6'))
self.ui.pushButton_7.clicked.connect(lambda:self.click_num('7'))
self.ui.pushButton_8.clicked.connect(lambda:self.click_num('8'))
self.ui.pushButton_9.clicked.connect(lambda:self.click_num('9'))
# 功能按键
self.ui.pushButton_point.clicked.connect(lambda:self.do('.'))
self.ui.pushButton_sum.clicked.connect(lambda:self.do('+'))
self.ui.pushButton_sub.clicked.connect(lambda:self.do('-'))
self.ui.pushButton_muti.clicked.connect(lambda:self.do('*'))
self.ui.pushButton_div.clicked.connect(lambda:self.do('/'))
self.ui.pushButton_left.clicked.connect(lambda: self.click('('))
self.ui.pushButton_right.clicked.connect(lambda: self.click(')'))
self.ui.pushButton_done.clicked.connect(self.done) # 等于号"="
self.ui.pushButton_clear.clicked.connect(self.clear) # 清除键
self.ui.pushButton_del.clicked.connect(self.del_end) # 退格键
self.ui.pushButton_output.clicked.connect(self.output)
# 数字按键响应函数
def click_num(self, num_str):
num = self.ui.result.toPlainText()
if num != '' and num_str == '0':
new_num = str(num) + num_str
self.ui.result.setText(new_num)
if num_str != '0':
new_num = str(num) + num_str
self.ui.result.setText(new_num)
# 括号按键响应函数
def click(self, what_str):
num = self.ui.result.toPlainText()
if what_str == '(':
new_num = str(num) + what_str
self.ui.result.setText(new_num)
if what_str == ')' and num != '':
new_num = str(num) + what_str
self.ui.result.setText(new_num)
# 功能按键响应函数
def do(self, do_what):
num = self.ui.result.toPlainText()
if num != '':
sym_list = ('+', '-', '*', '/', '.', '(')
if not num.endswith(sym_list):
new_num = str(num) + do_what
self.ui.result.setText(new_num)
# 计算函数
def done(self):
num = self.ui.result.toPlainText()
if num != '':
sym_list = ('+', '-', '*', '/', '.', '(')
if not num.endswith(sym_list):
try:
result = eval(num)
self.ui.result_history.append(num + '=' + str(result))
self.ui.result.setText(str(result))
except:
QtWidgets.QMessageBox.about(self.ui, '提示', '请输入正确的表达式')
else:
QtWidgets.QMessageBox.about(self.ui,'提示','请输入正确的表达式')
# 退格按键响应函数
def del_end(self):
num = self.ui.result.toPlainText()
if num != '':
new_num = ''
for i in range(len(num) - 1):
new_num += num[i]
self.ui.result.setText(new_num)
# 清除按键响应函数
def clear(self):
self.ui.result.setText('')
self.ui.result_history.setText('')
# 获取当前时间，精确到秒
def getTimeSecond(self):
timestamp = time.time() + 0 * 3600 # 东八区时间
time_tuple = time.localtime(timestamp)
time_str = time.strftime("%Y-%m-%d %H:%M:%S", time_tuple)
return time_str
# 导出历史记录
def output(self):
history = self.ui.result_history.toPlainText()
if history == '':
QtWidgets.QMessageBox.about(self.ui, '提示', '当前没有历史记录')
else:
with open('历史记录.txt', 'a+', encoding='utf-8') as f:
f.write('='*5 + self.getTimeSecond()+ '='*5 + '\r\n')
f.write(history + '\r\n')
QtWidgets.QMessageBox.about(self.ui, '提示', '历史记录保存成功')
if __name__ == '__main__':
app = QtWidgets.QApplication([])
simpleCalculator = SimpleCalculator()
simpleCalculator.ui.show()
app.exec_()
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发表于 2020-6-6 14:16
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发表于 2020-6-6 17:35
