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="/UploadFiles/2021-04-02/jquery-2.2.3.js">CSS样式 文件名 index.css
.login{/*登录*/ 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]"#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]+.".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
<"htmlcode"><"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"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
<"htmlcode"><"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'])"//img.jbzj.com/file_images/article/201812/2018127141558466.png" alt="" />sql语句
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO"; SET time_zone = "+00:00"; /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */; /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */; /*!40101 SET NAMES utf8 */; -- -- 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'); /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; ---------------------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。
标签：thinkPHP框架,计算器
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