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时间：2021-05-26
本文实例讲述了thinkPHP框架实现的简单计算器。分享给大家供大家参考，具体如下：
HTML部分 文件名 index.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>计算器</title> <script type="text/javascript" src="public/js/jquery-2.2.3.js"></script> <link rel="stylesheet" href="public/css/index.css" rel="external nofollow" ></head><body> <div class="login"> <span>登录</span> </div> <div class="register"> <form action=""> <span>请输入你的手机号开始使用</span> <br><br> <input id="myphone" type="text"> <input id="use" type="button" value="使用"> <br><br> </form> </div> <div class="calculator"> <div class="counter"> <span class="brand">计算器</span> <br><br> <input class="import" type="text" style="text-align: right;"> <br><br> <form class="snap" action=""> <br><br> <input class="order" id="one" type="button" value="1"> <input class="order" id="two" type="button" value="2"> <input class="order" id="three" type="button" value="3"> <input class="order" id="four" type="button" value="4"> <input class="order" id="five" type="button" value="5"> <br><br> <input class="order" id="six" type="button" value="6"> <input class="order" id="seven" type="button" value="7"> <input class="order" id="eight" type="button" value="8"> <input class="order" id="nine" type="button" value="9"> <input class="order" id="zero" type="button" value="0"> <br><br> <input class="operator" id="plus" type="button" value="+"> <input class="operator" id="add" type="button" value="-"> <input class="operator" id="mul" type="button" value="*"> <input class="operator" id="sub" type="button" value="/"> <input class="" id="equal" type="button" value="="> <br><br> <input class="order" type="button" value="."> <input id="backspace" type="button" value="←"> <input id="clear" type="button" value="c"> <input type="button" value="CE"> <input type="button" value="MC"> </form> </div> <div class="result"> <div> <span>当前结果:</span><span id="current_results"></span> </div> <br><br> <span>历史记录:</span> <ul id="cal_result" style="list-style-type: none"> <li><span>删除</span></li> </ul> </div> </div></body> <script type="text/javascript" src="public/js/index.js"> </script></html>CSS样式 文件名 index.css
.login{ height: 30px; width: 100px; background-color: #00a2d4; text-align: center; cursor: pointer; padding-top: 10px; position: fixed;}.register{ display: none; position: fixed;}.calculator{ display: none; position: fixed;}.counter{ border: 1px solid black; height: 400px; width: 320px; float: left;}.import{ height: 20px; width: 180px; margin-top: 50px; margin-left: 50px;}.snap{ margin-left: 50px; margin-top: -30px;}.snap input{ height: 30px; width: 30px;}.result{ border: 1px solid black; height: 400px; width: 320px; float: left; margin-left: 50px;}.brand{ position: relative; top: 50px; left: 90px;}JS部分 文件名 index.js
//计算屏幕宽高var w_width = $(window).width();var w_height = $(window).height();var operator = 0;//运算符号var change = 0;//属于运算符后需要清空上一数值var num1 = 0;//元算的第一个数据var num2 = 0;//运算的第二个数据var sum = 0;//运算结果//居中function setCenter(obj){ var this_width = $(obj).width(); var this_height = $(obj).height(); var this_left = parseInt((w_width-this_width)/2); var this_height = parseInt((w_height-this_height)/2); $(obj).css({left:this_left,top:this_height});}//正则function testReg() { //定义参数 var regType = arguments[0]?arguments[0]:'phone'; var myString = arguments[1]?arguments[1]:false; var regArray = new Array(); regArray['phone'] = /^1[3|4|5|7|8]\d{9}$/; regArray['email'] = /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;//邮箱 *代表{0,} +代表{1,} ?代表{0,1} //判断 if (myString){ return regArray[regType].test(myString); } return false;}//发送数据到后台function sendMessage() { //手机号 var myphone = $("#myphone").val(); //计算器 var myUrl = '/app/base.php'; var myData = {num1:num1,num2:num2,cal_option:operator,cal_result:sum,myphone:myphone,type:'add'}; $.post(myUrl,myData,function (msg) { //TODO },'json') getResultByPhone();}//获取结果function getResultByPhone() { var myphone = $("#myphone").val(); var myUrl = '/app/base.php'; var myData = {myphone:myphone,type:'getResult'}; $.post(myUrl,myData,function (msg) { //TODO $("#cal_result").html(msg); },'text')}//获取数据function deleteHistory(id) { var myUrl = '/app/base.php'; var MyData = {id:id,type:'delete'}; $.post(myUrl,MyData,function (msg) { //TODO },'json') getResultByPhone();}$(function () { //登录居中 setCenter($(".login").show(8000)); //点击登录显示输入 $(".login").click(function(){ setCenter($(".register").show()); $(this).hide(); }); //点击使用显示计算器 $("#use").click(function () { if (testReg('phone',$("#myphone").val())){ setCenter($(".calculator").show()); $(".register").hide(); getResultByPhone() }else { alert ("你输的手机格式不对"); return false; } }) $(".order").click(function () {//点击数字 var num = $(this).val(); var oldValue = $(".import").val(); if (change ==1){ oldValue = "0"; change = 0; } var newValue = ""; if (num == -1){ oldValue = parseFloat(oldValue); newValue = oldValue * -1; }else if (num == "."){ if (oldValue.indexOf('.') == -1) newValue = oldValue + "."; else newValue = oldValue; }else { if (oldValue == 0 && oldValue.lastIndexOf('.') == -1){ newValue = num; }else { newValue = oldValue + num; } } $(".import").val(newValue); }); $("#clear").click(function () {//清除 $(".import").val("0"); operator = 0; change = 0; num1 = 0; num2 = 0; }); $("#backspace").click(function () {//退格 if (change ==1){ operator = 0; change = 0; } var value = $(".import").val(); if (value.length == 1){ $(".import").val("0"); }else { value = value.substr(0,value.length - 1); $(".import").val(value); } }); $(".operator").click(function() {//点击运算符号触发事件 change = 1; operator = $(this).val(); var value = $(".import").val(); var dianIndex = value.indexOf("."); if (dianIndex == value.length) { value = value.substr(0, value.length - 1); } num1 = parseFloat(value); }); $("#equal").click(function () {//点击等号 var value = $(".import").val(); var dianIndex = value.indexOf("."); if (dianIndex == value.length){ value = value.substr(0,value.length - 1); } var equal = $(this).val(); num2 = parseFloat(value); if (operator == "+"){ sum = num1 + num2; }else if (operator == "-"){ sum = num1 - num2; }else if (operator == "*"){ sum = num1 * num2; }else if (operator == "/"){ sum = num1 / num2; }else if (operator == "" || num1 ==0 || num2 == 0){ sum = num1 +num2; } var re = /^[0-9]+.?[0-9]*$/; if (re.test(sum)){ sum = sum.toFixed(2); } $(".import").val(sum); sendMessage(); $("#current_results").text(num1 + operator + num2 + equal + sum); change = 1; operator = 0; num1 = 0; num2 = 0; });})接口 文件名 IDB.php
<?phpnamespace mao;interface IDB{ public function insert($data); public function update($data); public function select($data); public function del($data);}创建一个Mysqli类继承接口实现增删改查
文件名 MySqli.clsaa.php
<?phpnamespace mao;include "IDB.php";class MySqli implements IDB{ private $conn = null; private $table = null; private $sysConfig = array( 'host' => '', 'user' => '', 'pwd' => '', 'db' => '' ); private static $_instance = null; private function __construct($config){ if(is_array($config)){ $this->sysConfig = array_merge($this->sysConfig,$config); $this->conn = new \Mysqli($this->sysConfig['host'],$this->sysConfig['user'],$this->sysConfig['pwd'],$this->sysConfig['db']); if (!$this->conn){ echo "连接失败".mysqli_error(); } } } public static function getInstance($config){ if (is_null(self::$_instance)){ self::$_instance = new self($config); } return self::$_instance; } //设计表 public function table($table){ $this->table = $table; return $this; } //查询 private function changeCondition($condition){ $where_array = array(); foreach($condition as $k => $v){ if(is_array($v)){ if(strtolower($v[0])=='like'){ $where_array[] = $k.' '.$v[0].' \'%'.$v[1].'%\''; }else{ $where_array[] = $k.' '.$v[0].' \''.$v[1].'\''; } } if(is_string($v)){ $where_array[] = $k.' = \''.$v.'\''; } } $where = implode(' AND ',$where_array); return $where?$where:1; } public function select($condition){ $where = $this->changeCondition($condition); $sql = "select * from $this->table where ".$where."order by id desc limit 10"; $res = $this->conn->query($sql); $ret = array(); while ($row = $res->fetch_assoc()){ $ret[] = $row; } return $ret; } public function insert($data){ $sql = "insert into `{$this->table}` ( `id` ,`user_phone` ,`num1` ,`num2` ,`option` ,`result` ,`status` ,`admin_user` ) VALUES ( NULL , '{$data['myphone']}', '{$data['num1']}', '{$data['num2']}', '{$data['cal_option']}', '{$data['cal_result']}', '1', 'mao' )"; $this->conn->query($sql); } public function update($id){ $sql = "UPDATE `{$this->table}` SET `status` = '-1' WHERE `id` ={$id}"; $this->conn->query($sql); } public function del($condition){ }}配置项 文件名 config.php
<?phpreturn [ 'db'=>[ 'host' => '127.0.0.1', 'user' => 'root', 'pwd' => 'root', 'db' => 'cal' ], 'author' =>[ 'adminuser' => 'mao', ]];操作计算器 文件名 base.php
<?phpnamespace mao;define("ROOT_PATH",dirname(dirname(__FILE__)));$config = include ROOT_PATH."/lib/config/config.php";include ROOT_PATH."/lib/db/MySqli.class.php";$db = MySqli::getInstance($config['db']);if ($_POST){ //查询 if ($_POST['type'] == 'getResult'){ $condition = array( 'user_phone' =>array('like',$_POST['myphone']), 'status'=> '1' ); $result = $db->table('calculate')->select($condition); $result_string = ''; foreach ($result as $k => $v){ $result_string .= "<li><span class='mydelte' onclick='deleteHistory({$v['id']})'>删除</span>{$v['num1']} {$v['option']} {$v['num2']} = {$v['result']} </li>"; } echo $result_string; } //删除 if ($_POST['type'] == 'delete'){ $id = isset($_POST['id'])?$_POST['id']:''; $db->table('calculate')->update($id); } if ($_POST['type'] == 'add'){ $data = $_POST; $db->table('calculate')->insert($data); }}目录结构
sql语句
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";SET time_zone = "+00:00";;;;;---- 資料庫: `cal`---- ------------------------------------------------------------ 表的結構 `calculate`--CREATE TABLE IF NOT EXISTS `calculate` ( `id` int(10) NOT NULL AUTO_INCREMENT COMMENT '序号 主键 自增', `user_phone` varchar(100) NOT NULL COMMENT '用户手机号', `num1` varchar(100) NOT NULL COMMENT '第一个数字', `num2` varchar(100) NOT NULL COMMENT '第二个数字', `option` varchar(10) NOT NULL COMMENT '加减乘除选项', `result` varchar(100) NOT NULL COMMENT '结果', `status` int(10) NOT NULL COMMENT '状态-1 删除 0 禁用 1 正常', `admin_user` varchar(100) NOT NULL COMMENT '管理员', PRIMARY KEY (`id`)) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='计算表' AUTO_INCREMENT=40 ;---- 轉存資料表中的資料 `calculate`--INSERT INTO `calculate` (`id`, `user_phone`, `num1`, `num2`, `option`, `result`, `status`, `admin_user`) VALUES(1, '15727228076', '', '', '', '', 0, ''),(2, '15727228076', '7', '6', '+', '13', -1, 'jingshan'),(3, '13880425377', '9', '6', '+', '15', -1, 'jingshan'),(4, '13880425377', '8', '7', '+', '15', -1, 'jingshan'),(5, '13880425377', '8', '9', '*', '72', -1, 'jingshan'),(6, '13880425377', '6', '7', '+', '13', 1, 'jingshan'),(7, '13880425377', '89', '7', '+', '96', -1, 'jingshan'),(8, '13880425377', '67', '8', '+', '75', 1, 'jingshan'),(9, '13880425377', '2', '7', '+', '9', 1, 'jingshan'),(10, '13880425377', '78', '7', '+', '85', 1, 'jingshan'),(11, '13880425377', '12', '9', '*', '108', 1, 'jingshan'),(12, '13880425377', '23', '7', '-', '16', 1, 'jingshan'),(13, '13880425377', '67', '2', '-', '65', 1, 'jingshan'),(14, '13880425377', '34', '7', '+', '41', 1, 'jingshan'),(15, '13880425377', '78', '8', '/', '9.75', 1, 'jingshan'),(16, '13880425377', '72', '9', '+', '81', 1, 'jingshan'),(17, '13880425377', '78', '9', '+', '0', 1, 'mao'),(18, '13880425377', '67', '9', '+', '0', 1, 'mao'),(19, '13880425377', '78', '9', '+', '0', 1, 'mao'),(20, '13880425377', '78', '9', '+', '0', 1, 'mao'),(21, '13880425377', '67', '8', '+', '0', 1, 'mao'),(22, '13880425377', '62', '8', '+', '0', 1, 'mao'),(23, '13880425377', '12', '9', '*', '0', 1, 'mao'),(24, '13880425377', '12', '9', '+', '0', 1, 'mao'),(25, '13880425377', '7', '8', '-', '0', 1, 'mao'),(26, '13880425377', '2', '4', '+', '0', 1, 'mao'),(27, '13880425377', '8', '9', '*', '0', 1, 'mao'),(28, '13880425377', '8', '9', '+', '0', 1, 'mao'),(29, '13880425377', '12', '9', '*', '108.00', 1, 'mao'),(30, '13880425377', '7', '8', '+', '15.00', 1, 'mao'),(31, '13880425377', '1', '9', '*', '9.00', 1, 'mao'),(32, '13880425377', '29', '7', '*', '203.00', 1, 'mao'),(33, '13880425377', '95', '8', '/', '11.88', 1, 'mao'),(34, '13880425377', '67', '98', '*', '6566.00', 1, 'mao'),(35, '13880425377', '22', '9', '-', '13.00', 1, 'mao'),(36, '13880425377', '45', '9', '/', '5.00', 1, 'mao'),(37, '13880425377', '555', '777', '+', '1332.00', 1, 'mao'),(38, '13880425377', '89', '0', '-', '89.00', 1, 'mao'),(39, '13880425377', '0', '89', '0', '89.00', 1, 'mao');;;;---------------------更多关于thinkPHP相关内容感兴趣的读者可查看本站专题：《ThinkPHP入门教程》、《thinkPHP模板操作技巧总结》、《ThinkPHP常用方法总结》、《codeigniter入门教程》、《CI(CodeIgniter)框架进阶教程》、《Zend FrameWork框架入门教程》及《PHP模板技术总结》。
希望本文所述对大家基于ThinkPHP框架的PHP程序设计有所帮助。
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