Web Development Study Notes (6) Use of:<c:if> tags

Source: Internet
Author: User
Arithmetic operators +,-, *,/(or DIV) and% (or mod) relational operators = = (or eq),! = (or NE), < (or LT), > (or GT), <= (or Le), and >= (or GE) logical operators && (OR and), | | (OR) and! (or not) validation operator empty

Example: When first used, the main point is to note the position of the operator
<c:if test= "${li.type==1 and Li.selecttype==0}" > Single choice </c:if><c:if test= "${li.type==1 and Li.selecttype==1} "> Multiple choice </c:if><c:if test=" ${li.type==0} "> Questions </c:if>

<td><c:if test= "${li.patientsex==null}" > Not set </c:if><c:if test= "${li.patientsex==0}" > Male < /c:if><c:if test= "${li.patientsex==1}" > Women </c:if></td>

The other operators are similar.

Web Development Study Notes (6) Use of:<c:if> tags

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