DDR爱好者之家 Design By 杰米
目前可以实现简单的计算。计算前请重置，设计的时候默认数字是0，学了半天就做出来个这么个结果，bug不少。 python3.5 + PyQt5 +Eric6 在windows7 32位系统可以完美运行 计算器，简单学了半天就画个图实现的存在bug，部分按钮还未实现，后续优化。
代码结构如图：
jisuan.py
import re
#匹配整数或小数的乘除法，包括了开头存在减号的情况
mul_div=re.compile("(-")
#匹配整数或小数的加减法，包括了开头存在减号的情况
plus_minus = re.compile("(-")
#匹配括号
bracket=re.compile("\([^()]*\)")
#匹配乘法的时候出现乘以负数的情况，包括了开头存在减号的情况
mul_minus_minus = re.compile("(-")
#匹配除法的时候出现乘以负数的情况，包括了开头存在减号的情况
div_minus_minus = re.compile("(-")
#定义一个两位数的加减乘除法的运算，匹配左边的右边的数字和左边的数字，然后进行计算
def touble_cale(str_expire):
if str_expire.count("+") == 1:
right_num = float(str_expire[(str_expire.find("+")+1):])
left_num = float(str_expire[:str_expire.find("+")])
return str(right_num+left_num)
elif str_expire[1:].count("-") == 1:
right_num = float(str_expire[:str_expire.find("-",1)])
left_num = float(str_expire[(str_expire.find("-", 1) + 1):])
return str(right_num - left_num)
elif str_expire.count("*") == 1:
right_num = float(str_expire[:str_expire.find("*")])
left_num = float(str_expire[(str_expire.find("*")+1):])
return str(right_num * left_num)
elif str_expire.count("/") == 1:
right_num = float(str_expire[:str_expire.find("/")])
left_num = float(str_expire[(str_expire.find("/") + 1):])
return str(right_num / left_num)
#定义一个方法用于判断是否存在乘以负数和除以负数的情况
def judge_mul_minus(str_expire):
#判断公式中乘以负数的部分
if len(re.findall("(\*-)", str_expire)) != 0:
#调用上面的正则取得*-的公式
temp_mul_minus = mul_minus_minus.search(str_expire).group()
#将匹配的部分的*-换成*并将-放到前面
temp_mul_minus_2 = temp_mul_minus.replace(temp_mul_minus,"-" + temp_mul_minus.replace("*-","*"))
#经更改的的部分与原来的部分进行替换
str_expire=str_expire.replace(temp_mul_minus,temp_mul_minus_2)
return judge_mul_minus(str_expire)
#return str_expire
# 判断公式中除以负数的部分
elif len(re.findall(r"(/-)", str_expire)) != 0:
# 调用上面的正则取得/-的公式
temp_dev_minus = div_minus_minus.search(str_expire).group()
# 将匹配的部分的/-换成/并将-放到前面
temp_dev_minus_2 = temp_dev_minus.replace(temp_dev_minus,"-" + temp_dev_minus.replace("/-","/"))
# 经更改的的部分与原来的部分进行替换
str_expire = str_expire.replace(temp_dev_minus,temp_dev_minus_2)
return judge_mul_minus(str_expire)
#调用change_sign将公式中的++换成= +-换成-
return change_sign(str_expire)
#定义一个方法取将--更改为+ +-改为-
def change_sign(str_expire):
if len(re.findall(r"(\+-)", str_expire)) != 0:
str_expire = str_expire.replace("+-", "-")
return change_sign(str_expire)
elif len(re.findall(r"(--)", str_expire)) != 0:
str_expire = str_expire.replace("--", "+")
return change_sign(str_expire)
return str_expire
#定义一个方法用于计算只有加减乘除的公式，优先处理乘法
def cale_mix(str_expire):
#如果公式中出现符号数字的情况即+5 -6 *8 /8的这种情况直接放回数字否则则先计算乘除在处理加减
while len(re.findall("[-+*/]",str_expire[1:])) != 0:
if len(re.findall("(\*|/)",str_expire)) != 0:
str_expire = str_expire.replace(mul_div.search(str_expire).group(),touble_cale(mul_div.search(str_expire).group()))
elif len(re.findall("(\+|-)",str_expire)) !=0:
str_expire = str_expire.replace(plus_minus.search(str_expire).group(),touble_cale(plus_minus.search(str_expire).group()))
return str_expire
#定义一个方法用于去括号,并调用上述的方法进行计算
def remove_bracket(str_expire):
#判断公式中是否有括号
if len(bracket.findall(str_expire)) == 0:
return cale_mix(judge_mul_minus(str_expire))
elif len(bracket.findall(str_expire))!=0:
while len(bracket.findall(str_expire)) !=0:
#print(bracket.search(str_expire).group())
#只有存在括号优先处理括号中的内容并对内容进行替换，直到没有括号位置
str_expire = str_expire.replace(bracket.search(str_expire).group(),cale_mix(judge_mul_minus(bracket.search(str_expire).group()[1:-1])))
str_expire = cale_mix(judge_mul_minus(str_expire))
return str_expire
if __name__ == "__main__":
while True:
user_input_expire = input("请输入你的公式:(不要带空格,q表示退出):")
print("%s=%s" %(user_input_expire,remove_bracket(user_input_expire)))
continue
untitled.py
# -*- coding: utf-8 -*-
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui, QtWidgets
from Ui_untitled import Ui_Dialog
from jisuan import remove_bracket
class Dialog(QDialog, Ui_Dialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setupUi(self)
@pyqtSlot()
def on_Button_6_clicked(self):
self.Edit_xianshi.insertPlainText('6')
@pyqtSlot()
def on_Button_2_clicked(self):
self.Edit_xianshi.insertPlainText('2')
@pyqtSlot()
def on_Button_3_clicked(self):
self.Edit_xianshi.insertPlainText('3')
@pyqtSlot()
def on_Button_pingfang_clicked(self):
me=self.Edit_xianshi.toPlainText()
m=int(me) *int(me)
self.Edit_xianshi.clear()
self.Edit_xianshi.append(str(m))
@pyqtSlot()
def on_Button_add_clicked(self):
h=self.Edit_xianshi.toPlainText()
self.Edit_xianshi.clear()
self.Edit_xianshi.append(h+'+')
@pyqtSlot()
def on_Button_jian_clicked(self):
h = self.Edit_xianshi.toPlainText()
self.Edit_xianshi.clear()
self.Edit_xianshi.append(h + '-')
@pyqtSlot()
def on_Button_9_clicked(self):
self.Edit_xianshi.insertPlainText('9')
@pyqtSlot()
def on_Button_chu_clicked(self):
h = self.Edit_xianshi.toPlainText()
self.Edit_xianshi.clear()
self.Edit_xianshi.append(h + '/')
@pyqtSlot()
def on_Button_cheng_clicked(self):
h = self.Edit_xianshi.toPlainText()
self.Edit_xianshi.clear()
self.Edit_xianshi.append(h + '*')
@pyqtSlot()
def on_Button_8_clicked(self):
self.Edit_xianshi.insertPlainText('8')
@pyqtSlot()
def on_Button_4_clicked(self):
self.Edit_xianshi.insertPlainText('4')
@pyqtSlot()
def on_Button_esc_clicked(self):
self.Edit_xianshi.clear()
@pyqtSlot()
def on_Button_7_clicked(self):
self.Edit_xianshi.insertPlainText('7')
@pyqtSlot()
def on_Button_1_clicked(self):
self.Edit_xianshi.insertPlainText('1')
@pyqtSlot()
def on_Button_5_clicked(self):
self.Edit_xianshi.insertPlainText('5')
@pyqtSlot()
def on_Button_xiaoshu_clicked(self):
self.Edit_xianshi.insertPlainText('.')
@pyqtSlot()
def on_Button_0_clicked(self):
self.Edit_xianshi.insertPlainText('0')
@pyqtSlot()
def on_Button_dengyu_clicked(self):
pe=self.Edit_xianshi.toPlainText()
m=remove_bracket(pe)
self.Edit_xianshi.clear()
self.Edit_xianshi.append(str(m))
def on_Button_fenzhi_clicked(self):
pe = self.Edit_xianshi.toPlainText()
if int(pe) ==0:
QMessageBox.information(self,u'提示',u'零不能作为分母')
Dialog()
else:
m=1/(int(pe))
self.Edit_xianshi.clear()
self.Edit_xianshi.append(str(m))
Dialog()
if __name__ =="__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
app.processEvents()
ui = Dialog()
ui.show()
sys.exit(app.exec_())
Ui_untitled.py
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'C:\Users\Administrator\Desktop\pyqt5\untitled.ui'
#
# Created by: PyQt5 UI code generator 5.5
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(357, 320)
Dialog.setStyleSheet("font: 75 16pt \"Aharoni\";\n"
"background-color: rgb(206, 255, 251);")
self.label = QtWidgets.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(201, 210, 301, 21))
self.label.setText("")
self.label.setObjectName("label")
self.Edit_xianshi = QtWidgets.QTextEdit(Dialog)
self.Edit_xianshi.setGeometry(QtCore.QRect(0, 0, 351, 41))
self.Edit_xianshi.setStyleSheet("font: 75 16pt \"Aharoni\";")
self.Edit_xianshi.setObjectName("Edit_xianshi")
self.gridLayoutWidget = QtWidgets.QWidget(Dialog)
self.gridLayoutWidget.setGeometry(QtCore.QRect(0, 30, 351, 281))
self.gridLayoutWidget.setObjectName("gridLayoutWidget")
self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget)
self.gridLayout.setObjectName("gridLayout")
self.Button_6 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_6.setObjectName("Button_6")
self.gridLayout.addWidget(self.Button_6, 2, 2, 1, 1)
self.Button_2 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_2.setObjectName("Button_2")
self.gridLayout.addWidget(self.Button_2, 3, 1, 1, 1)
self.Button_3 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_3.setObjectName("Button_3")
self.gridLayout.addWidget(self.Button_3, 3, 2, 1, 1)
self.Button_fenzhi = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_fenzhi.setObjectName("Button_fenzhi")
self.gridLayout.addWidget(self.Button_fenzhi, 1, 3, 1, 1)
self.Button_pingfang = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_pingfang.setObjectName("Button_pingfang")
self.gridLayout.addWidget(self.Button_pingfang, 0, 3, 1, 1)
self.Button_add = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_add.setObjectName("Button_add")
self.gridLayout.addWidget(self.Button_add, 2, 3, 1, 1)
self.Button_jian = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_jian.setObjectName("Button_jian")
self.gridLayout.addWidget(self.Button_jian, 3, 3, 1, 1)
self.Button_9 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_9.setObjectName("Button_9")
self.gridLayout.addWidget(self.Button_9, 1, 2, 1, 1)
self.Button_chu = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_chu.setObjectName("Button_chu")
self.gridLayout.addWidget(self.Button_chu, 0, 2, 1, 1)
self.Button_cheng = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_cheng.setObjectName("Button_cheng")
self.gridLayout.addWidget(self.Button_cheng, 0, 1, 1, 1)
self.Button_8 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_8.setObjectName("Button_8")
self.gridLayout.addWidget(self.Button_8, 1, 1, 1, 1)
self.Button_4 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_4.setObjectName("Button_4")
self.gridLayout.addWidget(self.Button_4, 2, 0, 1, 1)
self.Button_esc = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_esc.setObjectName("Button_esc")
self.gridLayout.addWidget(self.Button_esc, 0, 0, 1, 1)
self.Button_7 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_7.setObjectName("Button_7")
self.gridLayout.addWidget(self.Button_7, 1, 0, 1, 1)
self.Button_1 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_1.setObjectName("Button_1")
self.gridLayout.addWidget(self.Button_1, 3, 0, 1, 1)
self.Button_5 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_5.setObjectName("Button_5")
self.gridLayout.addWidget(self.Button_5, 2, 1, 1, 1)
self.pushButton_17 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.pushButton_17.setText("")
self.pushButton_17.setObjectName("pushButton_17")
self.gridLayout.addWidget(self.pushButton_17, 4, 0, 1, 1)
self.Button_xiaoshu = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_xiaoshu.setObjectName("Button_xiaoshu")
self.gridLayout.addWidget(self.Button_xiaoshu, 4, 1, 1, 1)
self.Button_0 = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_0.setStyleSheet("")
self.Button_0.setObjectName("Button_0")
self.gridLayout.addWidget(self.Button_0, 4, 2, 1, 1)
self.Button_dengyu = QtWidgets.QPushButton(self.gridLayoutWidget)
self.Button_dengyu.setObjectName("Button_dengyu")
self.gridLayout.addWidget(self.Button_dengyu, 4, 3, 1, 1)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
self.Edit_xianshi.setHtml(_translate("Dialog", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'Aharoni\'; font-size:16pt; font-weight:72; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-family:\'SimSun\'; font-weight:400;\">0</span></p></body></html>"))
self.Button_6.setText(_translate("Dialog", "6"))
self.Button_2.setText(_translate("Dialog", "2"))
self.Button_3.setText(_translate("Dialog", "3"))
self.Button_fenzhi.setText(_translate("Dialog", "1/^"))
self.Button_pingfang.setText(_translate("Dialog", "^2"))
self.Button_add.setText(_translate("Dialog", "+"))
self.Button_jian.setText(_translate("Dialog", "-"))
self.Button_9.setText(_translate("Dialog", "9"))
self.Button_chu.setText(_translate("Dialog", "/"))
self.Button_cheng.setText(_translate("Dialog", "*"))
self.Button_8.setText(_translate("Dialog", "8"))
self.Button_4.setText(_translate("Dialog", "4"))
self.Button_esc.setText(_translate("Dialog", "esc"))
self.Button_7.setText(_translate("Dialog", "7"))
self.Button_1.setText(_translate("Dialog", "1"))
self.Button_5.setText(_translate("Dialog", "5"))
self.Button_xiaoshu.setText(_translate("Dialog", "."))
self.Button_0.setText(_translate("Dialog", "0"))
self.Button_dengyu.setText(_translate("Dialog", "="))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Dialog = QtWidgets.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
效果图：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
DDR爱好者之家 Design By 杰米
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DDR爱好者之家 Design By 杰米
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稳了！魔兽国服回归的3条重磅消息！官宣时间再确认！
昨天有一位朋友在大神群里分享，自己亚服账号被封号之后居然弹出了国服的封号信息对话框。
这里面让他访问的是一个国服的战网网址，com.cn和后面的zh都非常明白地表明这就是国服战网。
而他在复制这个网址并且进行登录之后，确实是网易的网址，也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情，因为以前都没有出现这样的情况，现在突然提示跳转到国服战网的网址，是不是说明了简体中文客户端已经开始进行更新了呢？
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