python做计算器，仅需输出代码！
实现一个简易的计算器，要求如下：1、能实现两个数字之间的加减乘除；2、能查看之前的计算结果，每次只能查看最近一次的计算结果（能查看最近五次的结果，后计算的结果先查看）；3、能把十进制数字转换成16进制，8进制，二进制；4、输入和输出界面设计美观合理,变量和函数等设计合理。只输出代码
#coding=utf-8
from __future__ import division
import sys
from PyQt4 import QtGui, QtCore
########################################################################
class Example(QtGui.QWidget):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
super(Example, self).__init__()
self.initUI_basic()
#----------------------------------------------------------------------
def initUI_basic(self):
""""""
self.point = 0
self.flag = 0
self.flag_equ = 0
self.flag_add = 0 #加
self.flag_sub = 0 #减
self.flag_mul = 0 #乘
self.flag_div = 0 #除
self.flag_flag = ''
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
#-------------------------------------------------------------------------
exitAction = QtGui.QAction(QtGui.QIcon('exit.png'), '&Exit', self)
exitAction.setShortcut('Ctrl+Q')
#exitAction.setStatusTip('Exit application')
exitAction.triggered.connect(QtGui.qApp.quit)
aboutAction = QtGui.QAction(QtGui.QIcon(''), '&About', self)
aboutAction.triggered.connect(self.OnAboutButton)
menubar = QtGui.QMenuBar()
fileMenu = menubar.addMenu('&File')
fileMenu.addAction(exitAction)
aboutMenu = menubar.addMenu('&About')
aboutMenu.addAction(aboutAction)
#----------------------------------------------------------------------
global lcd
lcd = QtGui.QTextBrowser()
lcd.setFixedHeight(190)
lcd.setFont(QtGui.QFont("Microsoft YaHei", 20))
#lcd.setFixedWidth(100)
lcd.setText('0'.decode('utf-8'))
grid = QtGui.QGridLayout()
self.setLayout(grid)
#self.setMinimumSize(300, 300)
#self.setMaximumSize(300, 300)
#self.setGeometry( 200, 100, 200, 200 )
grid.setSpacing(0)
grid.addWidget(menubar, self.point, 0, 1, 4)
grid.addWidget(lcd, self.point+1, 0, 1, 4)
#----------------------------------------------------------------------
button_1 = QtGui.QPushButton('1')
button_2 = QtGui.QPushButton('2')
button_3 = QtGui.QPushButton('3')
button_4 = QtGui.QPushButton('4')
button_5 = QtGui.QPushButton('5')
button_6 = QtGui.QPushButton('6')
button_7 = QtGui.QPushButton('7')
button_8 = QtGui.QPushButton('8')
button_9 = QtGui.QPushButton('9')
button_0 = QtGui.QPushButton('0')
button_dot = QtGui.QPushButton('.')
button_equ = QtGui.QPushButton('=')
button_div = QtGui.QPushButton('/')
button_mul = QtGui.QPushButton('*')
button_add = QtGui.QPushButton('+')
button_sub = QtGui.QPushButton('-')
button_cls = QtGui.QPushButton('cls')
button_0.setFixedSize(50, 50)
button_1.setFixedSize(50, 50)
button_2.setFixedSize(50, 50)
button_3.setFixedSize(50, 50)
button_4.setFixedSize(50, 50)
button_5.setFixedSize(50, 50)
button_6.setFixedSize(50, 50)
button_7.setFixedSize(50, 50)
button_8.setFixedSize(50, 50)
button_9.setFixedSize(50, 50)
button_dot.setFixedSize(50, 50)
button_equ.setFixedSize(200, 50)
button_div.setFixedSize(50, 50)
button_mul.setFixedSize(50, 50)
button_add.setFixedSize(50, 50)
button_sub.setFixedSize(50, 50)
button_cls.setFixedSize(50, 50)
button_0.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_1.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_2.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_3.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_4.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_5.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_6.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_7.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_8.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_9.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_dot.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_equ.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_div.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_mul.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_add.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_sub.setFont(QtGui.QFont("Microsoft YaHei", 16))
button_cls.setFont(QtGui.QFont("Microsoft YaHei", 16))
grid.addWidget(button_7, self.point+2,0)
grid.addWidget(button_8, self.point+2,1)
grid.addWidget(button_9, self.point+2,2)
grid.addWidget(button_div, self.point+2,3)
grid.addWidget(button_4, self.point+3,0)
grid.addWidget(button_5, self.point+3,1)
grid.addWidget(button_6, self.point+3,2)
grid.addWidget(button_mul, self.point+3,3)
grid.addWidget(button_1, self.point+4,0)
grid.addWidget(button_2, self.point+4,1)
grid.addWidget(button_3, self.point+4,2)
grid.addWidget(button_sub, self.point+4,3)
grid.addWidget(button_0, self.point+5,0)
grid.addWidget(button_dot, self.point+5,1)
grid.addWidget(button_cls, self.point+5,2)
grid.addWidget(button_add, self.point+5,3)
grid.addWidget(button_equ, self.point+6, 0, 1, 4)
self.move(300, 400)
self.setWindowTitle('Calculator')
grid.setSizeConstraint(QtGui.QLayout.SetFixedSize)
self.show()
self.connect(button_0,QtCore.SIGNAL('clicked()'),self.func_button_0)
self.connect(button_1,QtCore.SIGNAL('clicked()'),self.func_button_1)
self.connect(button_2,QtCore.SIGNAL('clicked()'),self.func_button_2)
self.connect(button_3,QtCore.SIGNAL('clicked()'),self.func_button_3)
self.connect(button_4,QtCore.SIGNAL('clicked()'),self.func_button_4)
self.connect(button_5,QtCore.SIGNAL('clicked()'),self.func_button_5)
self.connect(button_6,QtCore.SIGNAL('clicked()'),self.func_button_6)
self.connect(button_7,QtCore.SIGNAL('clicked()'),self.func_button_7)
self.connect(button_8,QtCore.SIGNAL('clicked()'),self.func_button_8)
self.connect(button_9,QtCore.SIGNAL('clicked()'),self.func_button_9)
self.connect(button_cls,QtCore.SIGNAL('clicked()'),self.func_button_cls)
self.connect(button_dot,QtCore.SIGNAL('clicked()'),self.func_button_dot)
self.connect(button_add,QtCore.SIGNAL('clicked()'),self.func_button_add)
self.connect(button_sub,QtCore.SIGNAL('clicked()'),self.func_button_sub)
self.connect(button_mul,QtCore.SIGNAL('clicked()'),self.func_button_mul)
self.connect(button_div,QtCore.SIGNAL('clicked()'),self.func_button_div)
self.connect(button_equ,QtCore.SIGNAL('clicked()'),self.func_button_equ)
#self.statusBar().showMessage('Ready')
#----------------------------------------------------------------------
def OnAboutButton( self ):
QtGui.QMessageBox.about( self, 'About', "A Calculator!" )
#----------------------------------------------------------------------
def keyPressEvent(self, event):
""""""
if event.key() == QtCore.Qt.Key_Escape:
self.close()
if event.key() == QtCore.Qt.Key_0:
self.func_button_0()
if event.key() == QtCore.Qt.Key_1:
self.func_button_1()
if event.key() == QtCore.Qt.Key_2:
self.func_button_2()
if event.key() == QtCore.Qt.Key_3:
self.func_button_3()
if event.key() == QtCore.Qt.Key_4:
self.func_button_4()
if event.key() == QtCore.Qt.Key_5:
self.func_button_5()
if event.key() == QtCore.Qt.Key_6:
self.func_button_6()
if event.key() == QtCore.Qt.Key_7:
self.func_button_7()
if event.key() == QtCore.Qt.Key_8:
self.func_button_8()
if event.key() == QtCore.Qt.Key_9:
self.func_button_9()
if event.key() == QtCore.Qt.Key_Period:
self.func_button_dot()
if event.key() == QtCore.Qt.Key_Enter:
self.func_button_equ()
if event.key() == QtCore.Qt.Key_Plus:
self.func_button_add()
if event.key() == QtCore.Qt.Key_Minus:
self.func_button_sub()
if event.key() == QtCore.Qt.Key_Asterisk:
self.func_button_mul()
if event.key() == QtCore.Qt.Key_Slash:
self.func_button_div()
if event.key() == QtCore.Qt.Key_C:
self.func_button_cls()
#----------------------------------------------------------------------
def func_button_0(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0': #防止在QLineEdit里连续出现 0 ，比如 000.1
self.num_1 = '0'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1+'0'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '0'
else:
self.num_2 = self.num_2+'0'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1 #Important:点击等号之后，除clear按键以外的按键都失效，用pass代替也可以，这里只是为了方便以后添加更多功能所以用了flag
#----------------------------------------------------------------------
def func_button_1(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '1'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '1'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '1'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '1'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_2(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '2'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '2'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '2'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '2'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_3(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '3'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '3'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '3'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '3'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_4(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '4'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '4'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '4'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '4'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_5(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '5'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '5'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '3'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '5'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_6(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '6'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '6'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '6'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '6'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_7(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '7'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '7'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '7'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '7'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_8(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '8'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '8'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '8'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '8'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_9(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '9'
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '9'
lcd.setText(self.num_1)
else:
if self.num_2 == '0' or '':
self.num_2 = '9'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '9'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_dot(self):
""""""
if self.flag_equ == 0:
if self.flag == 0:
if '.' not in self.num_1:
if self.num_1 == '0':
self.num_1 = '0.'
print self.num_1
lcd.setText(self.num_1)
else:
self.num_1 = self.num_1 + '.'
lcd.setText(self.num_1)
else:
if '.' not in self.num_2:
if self.num_2 == '':
self.num_2 = '0.'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.num_2 = self.num_2 + '.'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else :
self.flag_equ =1
#----------------------------------------------------------------------
def func_button_cls(self):
""""""
self.num_1 = '0'
self.num_2 = ''
self.flag = 0
self.flag_equ = 0
self.flag_add = 0
self.flag_sub = 0
self.flag_mul = 0
self.flag_div = 0
lcd.setText(self.num_1)
#----------------------------------------------------------------------
def func_button_add(self):
""""""
if self.flag == 0:
self.flag = 1
self.flag_add = 1
self.flag_sub = 0
self.flag_mul = 0
self.flag_div = 0
self.flag_flag = '+'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
pass
#----------------------------------------------------------------------
def func_button_sub(self):
""""""
if self.flag == 0:
if self.num_1 == '0':
self.num_1 = '-'
lcd.setText(self.num_1)
#elif self.num_2 == '':
#self.num_2 = '-'
#lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
self.flag = 1
self.flag_add = 0
self.flag_sub = 1
self.flag_mul = 0
self.flag_div = 0
self.flag_flag = '-'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
if self.num_2 == '':
self.num_2 = '-'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
#----------------------------------------------------------------------
def func_button_mul(self):
""""""
if self.flag == 0:
self.flag = 1
self.flag_add = 0
self.flag_sub = 0
self.flag_mul = 1
self.flag_div = 0
self.flag_flag = '*'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
pass
#----------------------------------------------------------------------
def func_button_div(self):
""""""
if self.flag == 0:
self.flag = 1
self.flag_add = 0
self.flag_sub = 0
self.flag_mul = 0
self.flag_div = 1
self.flag_flag = '/'
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2)
else:
pass
#----------------------------------------------------------------------
def func_button_equ(self):
""""""
if self.flag == 1:
if self.flag_flag == '+':
if '.' in self.num_1:
self.num_3 = str(float(self.num_1) + float(self.num_2))
if '.' not in self.num_1:
if '.' not in self.num_2:
self.num_3 = str(int(self.num_1) + int(self.num_2))
elif '.' in self.num_2:
self.num_3 = str(float(self.num_1) + float(self.num_2))
else:
self.num_3 = str(int(self.num_1) + int(self.num_2))
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2 + '\n=\n' + self.num_3)
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
elif self.flag_flag == '-':
if '.' in self.num_1:
self.num_3 = str(float(self.num_1) - float(self.num_2))
if '.' not in self.num_1:
if '.' not in self.num_2:
self.num_3 = str(int(self.num_1) - int(self.num_2))
elif '.' in self.num_2:
self.num_3 = str(float(self.num_1) - float(self.num_2))
else:
self.num_3 = str(int(self.num_1) - int(self.num_2))
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2 + '\n=\n' + self.num_3)
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
elif self.flag_flag == '*':
if '.' in self.num_1:
self.num_3 = str(float(self.num_1) * float(self.num_2))
if '.' not in self.num_1:
if '.' not in self.num_2:
self.num_3 = str(int(self.num_1) * int(self.num_2))
elif '.' in self.num_2:
self.num_3 = str(float(self.num_1) * float(self.num_2))
else:
self.num_3 = str(int(self.num_1) * int(self.num_2))
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2 + '\n=\n' + self.num_3)
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
elif self.flag_flag == '/':
if self.num_2 == '0':
lcd.setText("0不能作为除数！".decode('utf-8'))
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
else:
self.num_3 = float(self.num_1) / float(self.num_2)
if (self.num_3 * 10) % 10 == 0:
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2 + '\n=\n' + str(int(self.num_3)))
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
else:
lcd.setText(self.num_1 + '\n' + self.flag_flag + '\n' + self.num_2 + '\n=\n' + str(float(self.num_3)))
self.flag = 0
self.num_1 = '0'
self.num_2 = ''
self.num_3 = ''
else:
pass
#----------------------------------------------------------------------
def main():
""""""
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
PyQt4写的
# *_* coding:utf8 *_*
import tkinter
from functools import partial
results = []
index = 0
# 按钮输入调用
def get_input(entry, entry1, text, argu):
# 从entry窗口展示中获取输入的内容
input_data = entry.get()
input_data1 = entry1.get()
# 出现连续+，则第二个+为无效输入，不做任何处理
if (input_data1[-1:] == '+') and (argu == '+'):
return
# 出现连续+--，则第三个-为无效输入，不做任何处理
if (input_data1[-2:] == '+-') and (argu == '-'):
return
# 窗口已经有--后面字符不能为+或-
if (input_data1[-2:] == '--') and (argu in ['-', '+']):
return
# 窗口已经有 ** 后面字符不能为 * 或 /
if ((input_data1[-2:] == '**') or (len(input_data1)==0 and len(input_data)==0)) and (argu in ['*', '/']):
return
if argu in ['-', '+', '*', '/'] and (input_data1[-1:] not in ['-', '+', '*', '/'] or len(input_data)>0):
entry1.insert("end", input_data)
entry.delete(0, "end")
text.delete(0.0, tkinter.END)
entry1.insert("end", argu)
else:
entry.insert("end", argu)
show_text(text, entry.get())
def show_text(text, argu):
text.delete(0.0, tkinter.END)
decstr = 'DEC:'+argu
hexstr = 'HEX:'+hex(int(argu))[2:]
octstr = 'OCT:'+oct(int(argu))[2:]
binstr = 'BIN:'+bin(int(argu))[2:]
text.insert(tkinter.INSERT, decstr+'\n')
text.insert(tkinter.INSERT, hexstr+'\n')
text.insert(tkinter.INSERT, octstr+'\n')
text.insert(tkinter.INSERT, binstr)
# 退格(撤销输入)
def backspace(entry, text):
input_len = len(entry.get())
# 删除entry窗口中最后的字符
entry.delete(input_len - 1)
# 清空entry内容(清空窗口)
def clear(entry, entry1, text):
entry.delete(0, "end")
entry1.delete(0, "end")
text.delete(0.0, tkinter.END)
def last(entry, text):
global results,index
if len(results)>0:
entry.delete(0, "end")
index = index-1 if index>0 else 0
entry.insert("end", results[index])
show_text(text, entry.get())
def next(entry, text):
global results,index
if len(results)>0:
entry.delete(0, "end")
index = index+1 if index<len(results)-1 else len(results)-1
entry.insert("end", results[index])
show_text(text, entry.get())
# 计算
def calc(entry, entry1, text):
global results,index
entry1.insert("end", entry.get())
input_data = entry1.get()
# 计算前判断输入内容是否为空;首字符不能为*/;*/不能连续出现3次;
if not input_data:
return
clear(entry, entry1, text)
# 异常捕获，在进行数据运算时如果出现异常进行相应处理
# noinspection PyBroadException
try:
# eval() 函数用来执行一个字符串表达式，并返回表达式的值；并将执行结果转换为字符串
output_data = str(eval(input_data))
except Exception:
# 将提示信息输出到窗口
entry.insert("end", "Calculation error")
else:
# 将计算结果显示在窗口中
if len(output_data) > 20:
entry.insert("end", "Value overflow")
else:
entry.insert("end", output_data)
show_text(text, output_data)
if len(results)==5:
results.pop(0)
results.append(output_data)
index = len(results)-1
def place_button(text, func, func_params, bg='pink', **place_params):
my_button = partial(tkinter.Button, root, bg=button_bg, padx=10, pady=3, activebackground=button_active_bg)
button = my_button(text=text, bg=bg, command=lambda: func(*func_params))
button.grid(**place_params)
if __name__ == '__main__':
root = tkinter.Tk()
root.title("Yummy")
root.resizable(0, 0)
button_bg = 'pink'
math_sign_bg = 'DarkTurquoise'
cal_output_bg = 'Yellow'
button_active_bg = 'gray'
entry = tkinter.Entry(root, justify="right", font=1)
entry.grid(row=1, column=0, columnspan=4, padx=10, pady=10)
entry1 = tkinter.Entry(root, justify="right", font=1)
entry1.grid(row=0, column=0, columnspan=4, padx=10, pady=10)
text = tkinter.Text(root,width=20, height=4, font=1)
text.grid(row=2, column=0, columnspan=4, padx=10, pady=10)
# 文本输入类按钮
place_button('1', get_input, (entry, entry1, text, '1'), row=3, column=0, ipadx=5, pady=5)
place_button('2', get_input, (entry, entry1, text, '2'), row=3, column=1, ipadx=5, pady=5)
place_button('3', get_input, (entry, entry1, text, '3'), row=3, column=2, ipadx=5, pady=5)
place_button('4', get_input, (entry, entry1, text, '4'), row=4, column=0, ipadx=5, pady=5)
place_button('5', get_input, (entry, entry1, text, '5'), row=4, column=1, ipadx=5, pady=5)
place_button('6', get_input, (entry, entry1, text, '6'), row=4, column=2, ipadx=5, pady=5)
place_button('7', get_input, (entry, entry1, text, '7'), row=5, column=0, ipadx=5, pady=5)
place_button('8', get_input, (entry, entry1, text, '8'), row=5, column=1, ipadx=5, pady=5)
place_button('9', get_input, (entry, entry1, text, '9'), row=5, column=2, ipadx=5, pady=5)
place_button('0', get_input, (entry, entry1, text, '0'), row=6, column=0, ipadx=5, pady=5)
place_button('.', get_input, (entry, entry1, text, '.'), row=6, column=1, ipadx=5, pady=5)
place_button('←', backspace, (entry, text,), row=6, column=2, ipadx=5, pady=5)
place_button('↑', last, (entry, text,), row=7, column=0, pady=5, ipadx=5)
place_button('↓', next, (entry, text,), row=7, column=1, pady=5, ipadx=5)
place_button('C', clear, (entry, entry1, text,), row=7, column=2, pady=5, ipadx=5)
place_button('+', get_input, (entry, entry1, text, '+'), bg=math_sign_bg, row=3, column=3, ipadx=5, pady=5)
place_button('-', get_input, (entry, entry1, text, '-'), bg=math_sign_bg, row=4, column=3, ipadx=5, pady=5)
place_button('*', get_input, (entry, entry1, text, '*'), bg=math_sign_bg, row=5, column=3, ipadx=5, pady=5)
place_button('/', get_input, (entry, entry1, text, '/'), bg=math_sign_bg, row=6, column=3, ipadx=5, pady=5)
place_button('=', calc, (entry, entry1, text,), bg=cal_output_bg,row=7, column=3, ipadx=5, pady=5)
root.mainloop()
