使用HTML+CSS,jQuery编写的简易计算器
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互联网集市收集整理的这篇技术教程文章主要介绍了使用HTML+CSS,jQuery编写的简易计算器,小编现在分享给大家,供广大互联网技能从业者学习和参考。文章包含7525字,纯文字阅读大概需要11分钟。
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1 <% @ page language = " java " contentType = " text/html; charset=UTF-8 " 2 pageEncoding = " UTF-8 " %> 3 <! DOCTYPE html > 4 < html > 5 < head > 6 < meta charset =" utf-8" > 7 < meta name ="author" content ="http://www.softwhy.com/" /> 8 < title >简易计算器</title> 9<jsp:include page="inc/easyui.jsp"></jsp:include> 10<style type="text/css"> 11button { 12 font-size: 18px; 13 font-weight: bold; 14 width: 75px; 15} 16</style> 17<script type="text/javascript"> 18var yunSuan =0;//运算符号,0-无运算;1-加法;2-减法;3-乘法;4-除法 19var change =0;//属于运算符后需要清空上一数值 20var num1 =0;//运算第一个数据 21var num2 =0;//运算第二个数据 22var cunChuValue =0;//存储的数值 23 $(function() { 24 $(".number").click(function() {//点击数字触发事件 25var num = $(this).attr(‘name‘); 26var oldValue = $("#jieguo").html(); 27if (change ==1) { 28 oldValue ="0"; 29 change =0; 30 } 31var newValue =""; 32if (num ==-1) { 33 oldValue = parseFloat(oldValue); 34 newValue = oldValue *-1; 35 } elseif (num ==".") { 36if (oldValue.indexOf(‘.‘) ==-1) 37 newValue = oldValue +"."; 38else 39 newValue = oldValue; 40 } else { 41if (oldValue ==0&& oldValue.indexOf(‘.‘) ==-1) { 42 newValue = num; 43 } else { 44 newValue = oldValue + num; 45 } 46 } 47 $("#jieguo").html(newValue); 48 }); 49 $("#qingPing").click(function() {//点击清屏触发事件 50 $("#jieguo").html("0"); 51 yunSuan =0; 52 change =0; 53 num1 =0; 54 num2 =0; 55 }); 56 $("#tuiGe").click(function() {//点击退格触发事件 57if (change ==1) { 58 yunSuan =0; 59 change =0; 60 } 61var value = $("#jieguo").html(); 62if (value.length ==1) { 63 $("#jieguo").html("0"); 64 } else { 65 value = value.substr(0, value.length -1); 66 $("#jieguo").html(value); 67 } 68 }); 69 $(".yunSuan").click(function() {//点击运算符号触发事件 70 change =1; 71 yuSuan = $(this).attr(‘name‘); 72var value = $("#jieguo").html(); 73var dianIndex = value.indexOf("."); 74if (dianIndex == value.length) { 75 value = value.substr(0, value.length -1); 76 } 77 num1 = parseFloat(value); 78 }); 79 $("#dengYu").click(function() {//点击等于符号触发事件 80var value = $("#jieguo").html(); 81var dianIndex = value.indexOf("."); 82if (dianIndex == value.length) { 83 value = value.substr(0, value.length -1); 84 } 85 num2 = parseFloat(value); 86var sum =0; 87if (yuSuan ==1) { 88 sum = num1 + num2; 89 } elseif (yuSuan ==2) { 90 sum = num1 - num2; 91 } elseif (yuSuan ==3) { 92 sum = num1 * num2; 93 } elseif (yuSuan ==4) { 94 sum = num1 / num2; 95 } elseif (yuSuan ==0|| num1 ==0|| num2 ==0) { 96 sum = num1 + num2; 97 } 98var re =/^[0-9]+.?[0-9]*$/; 99if (re.test(sum)) { 100 sum = sum.toFixed(2); 101 } 102 $("#jieguo").html(sum); 103 change =1; 104 yuSuan =0; 105 num1 =0; 106 num2 =0; 107 }); 108 $("#cunChu").click(function() {//点击存储触发事件109 change =1; 110var value = $("#jieguo").html(); 111var dianIndex = value.indexOf("."); 112if (dianIndex == value.length) { 113 value = value.substr(0, value.length -1); 114 } 115 cunChuValue = parseFloat(value); 116 }); 117 $("#quCun").click(function() {//点击取存触发事件118 change =1; 119 $("#jieguo").html(cunChuValue); 120 }); 121 $("#qingCun").click(function() {//点击清存触发事件122 change =1; 123 cunChuValue =0; 124 }); 125 $("#leiCun").click(function() {//点击累存触发事件126 change =1; 127var value = $("#jieguo").html(); 128var dianIndex = value.indexOf("."); 129if (dianIndex == value.length) { 130 value = value.substr(0, value.length -1); 131 } 132 cunChuValue += parseFloat(value); 133 }); 134 $("#jiCun").click(function() {//点击积存触发事件135 change =1; 136var value = $("#jieguo").html(); 137var dianIndex = value.indexOf("."); 138if (dianIndex == value.length) { 139 value = value.substr(0, value.length -1); 140 } 141if (cunChuValue ==0) { 142 cunChuValue = parseFloat(value); 143 } else { 144 cunChuValue = cunChuValue * parseFloat(value); 145 } 146 }); 147 }); 148</script>149</head>150<body>151<table>152<tr>153<td colspan="4">154<div id="jieguo"155 style="width: 300px;height: 30px;font-size: 30px;text-align: right;font-weight:bold;color: red;">0</div>156</td>157</tr>158<tr style="height: 40px;">159<td>160<button id="cunChu"> 存 储 </button>161</td>162<td>163<button id="quCun"> 取 存 </button>164</td>165<td>166<button id="tuiGe"> 退 格 </button>167</td>168<td>169<button id="qingPing"> 清 屏 </button>170</td>171</tr>172<tr style="height: 40px;">173<td>174<button id="leiCun"> 累 存 </button>175</td>176<td>177<button id="jiCun"> 积 存 </button>178</td>179<td>180<button id="qingCun"> 清 存 </button>181</td>182<td>183<button id="Chuyi" class="yunSuan" name="4"> ÷ </button>184</td>185</tr>186<tr style="height: 40px;">187<td>188<button id="seven" class="number" name="7"> 7 </button>189</td>190<td>191<button id="eight" class="number" name="8"> 8 </button>192</td>193<td>194<button id="nine" class="number" name="9"> 9 </button>195</td>196<td>197<button id="chengYi" class="yunSuan" name="3"> × </button>198</td>199</tr>200<tr style="height: 40px;">201<td>202<button id="four" class="number" name="4"> 4 </button>203</td>204<td>205<button id="five" class="number" name="5"> 5 </button>206</td>207<td>208<button id="six" class="number" name="6"> 6 </button>209</td>210<td>211<button id="jianQu" class="yunSuan" name="2"> - </button>212</td>213</tr>214<tr style="height: 40px;">215<td>216<button id="one" class="number" name="1"> 1 </button>217</td>218<td>219<button id="two" class="number" name="2"> 2 </button>220</td>221<td>222<button id="three" class="number" name="3"> 3 </button>223</td>224<td>225<button id="jiaShang" class="yunSuan" name="1"> + </button>226</td>227</tr>228<tr style="height: 40px;">229<td>230<button id="zero" class="number" name="0"> 0 </button>231</td>232<td>233<button id="dian" class="number" name="."> . </button>234</td>235<td>236<button id="zhengFu" class="number" name="-1"> +/- </button>237</td>238<td>239<button id="dengYu"> = </button>240</td>241</tr>242</table>243</body>244</html>
计算器样式布局有所借鉴,代码均为原创,未经授权禁止转载;内容未经过严格测试,如遇BUG欢迎提出,谢谢!
原文:http://www.cnblogs.com/JoeyYan/p/5056640.html
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