basic-arithmetic.jsp

来自「的方式呵呵呵呵呵呵呵呵呵呵呵呵呵呵呵分人人人人人人人人人人人人人人人人」· JSP 代码 · 共 89 行

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<!-- Licensed to the Apache Software Foundation (ASF) under one or more  contributor license agreements.  See the NOTICE file distributed with  this work for additional information regarding copyright ownership.  The ASF licenses this file to You under the Apache License, Version 2.0  (the "License"); you may not use this file except in compliance with  the License.  You may obtain a copy of the License at      http://www.apache.org/licenses/LICENSE-2.0  Unless required by applicable law or agreed to in writing, software  distributed under the License is distributed on an "AS IS" BASIS,  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the specific language governing permissions and  limitations under the License.--><html>  <head>    <title>JSP 2.0 Expression Language - Basic Arithmetic</title>  </head>  <body>    <h1>JSP 2.0 Expression Language - Basic Arithmetic</h1>    <hr>    This example illustrates basic Expression Language arithmetic.    Addition (+), subtraction (-), multiplication (*), division (/ or div),     and modulus (% or mod) are all supported.  Error conditions, like    division by zero, are handled gracefully.    <br>    <blockquote>      <code>        <table border="1">          <thead>	    <td><b>EL Expression</b></td>	    <td><b>Result</b></td>	  </thead>	  <tr>	    <td>\${1}</td>	    <td>${1}</td>	  </tr>	  <tr>	    <td>\${1 + 2}</td>	    <td>${1 + 2}</td>	  </tr>	  <tr>	    <td>\${1.2 + 2.3}</td>	    <td>${1.2 + 2.3}</td>	  </tr>	  <tr>	    <td>\${1.2E4 + 1.4}</td>	    <td>${1.2E4 + 1.4}</td>	  </tr>	  <tr>	    <td>\${-4 - 2}</td>	    <td>${-4 - 2}</td>	  </tr>	  <tr>	    <td>\${21 * 2}</td>	    <td>${21 * 2}</td>	  </tr>	  <tr>	    <td>\${3/4}</td>	    <td>${3/4}</td>	  </tr>	  <tr>	    <td>\${3 div 4}</td>	    <td>${3 div 4}</td>	  </tr>	  <tr>	    <td>\${3/0}</td>	    <td>${3/0}</td>	  </tr>	  <tr>	    <td>\${10%4}</td>	    <td>${10%4}</td>	  </tr>	  <tr>	    <td>\${10 mod 4}</td>	    <td>${10 mod 4}</td>	  </tr>    <tr>      <td>\${(1==2) ? 3 : 4}</td>      <td>${(1==2) ? 3 : 4}</td>    </tr>	</table>      </code>    </blockquote>  </body></html>

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