📄 tempconvert1.jsp
字号:
<!-- tempconvert1.jsp
A document that collects a Celsius temperature from a
client and uses a scriptlet to convert it to Fahrenheit
-->
<html xmlns = "http://www.w3.org/1999/xhtml">
<head>
<title> Temperature converter </title>
</head>
<body>
<p>
<%
// Get the Celsius temperature from the form
String strCtemp = request.getParameter("ctemp");
float ftemp;
// If this is not the first request (there was a form value),
// convert the value to Fahrenheit
if (strCtemp != null) {
ftemp = 1.8f * Integer.parseInt(strCtemp) + 32.0f;
%>
<!-- Use an expression to display the value of the
Fahrenheit temperature -->
Fahrenheit temperature:
<%= ftemp %>
<!-- Code for the end of the then clause compound
statement -->
<%
} //** end of if (strCtemp != ...
else {
%>
<!-- This is the first request, so display the form
to collect the Celsius temperature -->
<form action = "tempconvert1.jsp" method = "get" >
Celsius temperature:
<input type = "text" name = "ctemp" />
<input type = "submit" />
</form>
</p>
<!-- Code for the end of the else clause compound
statement -->
<%
} //** end of else clause
%>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -