pert calculator

1. Calculator example#/usr/bin/envpython#-*-coding:utf-8-*-# @time :2018/1/22 21:09# @Author :FengXiaoqing# @file :jsq.pydefadd (String): total=0numbers=[]numbers +=string.split ("+") fornuminnumbers: total+=int (Num.strip ()) print ("{0}= {1} ". Format (string,total)) Defreduce (string):result=0 numbers=[]numbers+=string.split ("-") result=int (Numbers[0].strip ()) numbers.pop (0) Fornuminnumbers:result-=int ( Num.strip ()) NBSP;NBSP;NBSP;NBSp;prin

The general calculator shows the effect:Write a calculator with JS

JavaScript Web calculator code, which is written in DW! HTML Chapter CSS Chapter @charset "Utf-8"; * * CSS Document //. TRB { Font-family:georgia, "Times New Roman", times, serif; font-size:24px; Color: #FFF; Background-color: #333; Text-align:center; border:1px solid #999; operator { background-color: #333; font-size:18px; Color: #C60; Font-family:verdana, Geneva, Sans-serif; td:hover{ font-size:28px; Cursor:pointe

The calculator code in this article is very simple and you can easily apply the Web effects to your project. Html First we put an input box and multiple calculator buttons on the Web page. Js Follow the action type: function operator (type) {switch (type) {case "clear": Input.value = "0"; _string.length = 0; /*document.getelementbyid ("CCC"). innerhtml= ""; for

Today to share a calculator program written in pure JavaScript code, many industries can use this program, such as the decoration budget, loan rates and so on. First look at the effect after the completion: Method One: Write the code as follows: code two: method Three: Above in three ways to achieve the pure JavaScript code implementation calculator function, I h

--Coding:utf-8--form implementation generated from reading UI file ' Calculator.ui '#Created:fri Apr 12:33:04 2016by:pyqt4 UI code generator 4.9.6#warning! All changes made in this file would be lost!ui_calculator.pyFrom PYQT4 import Qtcore, QtguiTry_fromutf8 = QtCore.QString.fromUtf8Except Attributeerror:def _fromutf8 (s):return sTry_encoding = QtGui.QApplication.UnicodeUTF8def _translate (context, text, disambig):Return QtGui.QApplication.translate (context, text, disambig, _encoding)Except At

"Apply" button to OK. After the clock is set, we only need to use the mouse to click the time and date display area, do not need any action will automatically appear we set the additional time zone, use it very convenient and quick. Compared with previous Windows XP and other old operating systems, the Win7 clock function brings more humanized work, not only has the beautiful interface, the convenient operation way, but also has the similar high efficiency performance

Calculator and Windows System companion for many years, Win7 genuine system naturally also have calculator, compared with XP, Vista and earlier Windows system, Win7 Genuine System Calculator function is more powerful, in addition to simple add, subtract, multiply, divide, still can carry on more complex mathematics operation, As well as the various calculations e

Simple calculator written by JavaScript

calculation of the symbolExp_sum = ADD_SUB (exp)#Call Add_sub to calculate addition and subtraction returnExp_sum#float #返回计算结果defMain (exp): Exp= Exp.replace (' ',"')#Delete spaces in a string whileTrue:ret= Re.search ('\([^()]+\)', exp)#Match parentheses ifRet:#if it matches.Inner_bracket = Ret.group ()#use Group () to extract the bracketed content that matches tores = str (cal (Inner_bracket))#call Cal () to calculate the contents of parentheses and convert the returned result

(i)elifFIND_[INDEX-1] = ="-": #If two negative numbers are subtracted, they are added or subtracted ifTag = =True:res+=float (i)Else: Res-=float (i)Else: #case where I is empty when processing without parentheses ifI! ="": Res=float (i)returnResif __name__=='__main__': whileTrue:calc_input= Input ("Please enter a calculation formula \ n default to:%s:"%a). Strip ()Try: ifLen (calc_input) = =0:calc_input=a calc_input= R'%s'%calc_input#do special treatment t

@__create_say_zsq ()def __init__ (Self,num):Self.__result = num@__check_num_zsq@__create_say_zsq ("plus")def Jia (self,n):Self.__result + = nreturn self@__check_num_zsq@__create_say_zsq ("Minus")Def Jian (self,n):Self.__result-= nreturn self@__check_num_zsq@__create_say_zsq ("multiply")def Chen (self,n):Self.__result *= Nreturn selfDef show (self):Self.__say ("The result of the calculation is:%d"%self.__result)Print ("The result of the calculation is:%d"%self.__result)return selfdef clear (self)

The code is as follows:Import Java.awt.*;import javax.swing.*;p ublic class Gridframe extends JFrame {//define string array, assign a value to the display text of the button string str[] = {"MC", "MR", "MS", "m+", "←", "C", "%", "π", "7", "8", "9", "/", "4", "5", "6", "*", "1", "2", "3", "-", "0", ".", "=", "+"};p UBL IC Gridframe () {//define panel and set to Grid layout, 4 rows 4 columns, component horizontal, vertical spacing is 7JPanel pan = new JPanel ();p an.setlayout (New GridLayout (6, 4

I used to look at PHP when I wanted to do this, but there has been no time, this time finally took a sneak into the code more than the amount of project.First of all, the document structure, all in one folder is good, my example is the following.Start by entering the index.php file.Doing a couple of things.1. The number of passes that can be obtained by $get_[the "action" method and the $_request ["action"] method is rect, triangle or circle.2. The two classes of form.class.php and result.class.

This is my copy of a calculator, feel the process is relatively simple, so share. 1. Create a new file, find a material to put in a grain of wood 2. New layer, fill a black radial gradient 3. Draw a rectangle with rounded corners. The final painting here has a shape filler tool to draw, the right amount of graphics size adjustment is not easy to distort, but also suitable for Various sizes. Easy to modify. Fill style specific

defMUL_DIV (exp):#Calculate multiplication whileTrue:ret= Re.search ('[\d\.] +[\*\/]-? [\d\.] +', exp)ifRet:atom_exp=Ret.group () Res=atom_cal (ATOM_EXP) exp=exp.replace (Atom_exp, res)Else: returnFOMAT_EXP (exp)defFOMAT_EXP (exp):#after calculating the multiplication, the unified symbolExp=exp.replace ('--','+') Exp=exp.replace ('-+','-') Exp=exp.replace ('++','+') Exp=exp.replace ('+-','-') returnadd_sub (exp)defADD_SUB (exp):#calculate add and SubtractRet=re.findall ('[\-\+]

(atom_exp,res)Else: returnExpdefadd_sub (exp): RET= Re.findall ("[+-]?\d+ (?: \. \d+)?", exp)#Take out the numbers and symbols in front of the numbers FindAll returns a list to find all itemsExp_sum =0 forIinchRet:exp_sum= Exp_sum + float (i)#The string is taken out. returnExp_sumdefCAL (exp): Exp=MUL_DIV (exp) Exp=Format (exp) exp_sum=add_sub (exp)returnExp_sumdefMain (exp): Exp= Exp.replace (" ","") whileTrue:ret= Re.search ("\([^()]+\)", exp)ifRet:inner_bracket=Ret.group ()

This JSP page is designed to implement the ability to submit and receive data on the same page .There are a lot of shortcomings in this small program, I hope you will criticize.The implementation results are as follows:How to implement a simple calculator with JSP (c)

.]*] \) ', S_MATCH_STR). Group (1) s = S.replace (S_match_str, S_match_str_match) print (s) Else:print ("Call processing%s"%s_match_str) S_match_str_str=re.search (' \ ([+\-*/0-9.] *) \) ', s). Group (1)Ret=handler_expression (s_match_str_str) s = s.replace (S_match_str, str (ret)) print (s) Else:flag=false return s# no_braces_result=hadler_braces (' ( -1+ (2-5* ( -1)) * (2-5)) # Result=handler_expressi On (no_braces_result) # print (result) if __name__ = = ' __main__ ': While tru

　　JS Simple Calculator