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  • freemarker中的substring取子串

    freemarker中的substring取子串


    1、substring取子串介绍

    (1)表达式?substring(from,to)

    (2)当to为空时,默认的是字符串的长度

    (3)from是第一个字符的開始索引,to最后一个字符之后的位置索引


    2、举例说明

         <#--freemarker中的substring取子串-->
         
         ${'EFGHIJKL'?substring(0)}
         ${'EFGHIJKL'?substring(1)}
         ${'EFGHIJKL'?

    substring(2)} ${'EFGHIJKL'?substring(3)} ${'EFGHIJKL'?

    substring(4)} ${'EFGHIJKL'?

    substring(5)} ${'EFGHIJKL'?substring(6)} ${'EFGHIJKL'?substring(7)} ${'EFGHIJKL'?substring(8)} ${'EFGHIJKL'?substring(0,1)} ${'EFGHIJKL'?substring(0,2)} ${'EFGHIJKL'?

    substring(0,3)} ${'EFGHIJKL'?substring(0,4)} ${'EFGHIJKL'?

    substring(0,5)} ${'EFGHIJKL'?substring(0,6)} ${'EFGHIJKL'?substring(0,7)} ${'EFGHIJKL'?substring(0,8)}


    3、演示样例结果

         EFGHIJKL
         FGHIJKL
         GHIJKL
         HIJKL
         IJKL
         JKL
         KL
         L
         
         
         E
         EF
         EFG
         EFGH
         EFGHI
         EFGHIJ
         EFGHIJK
         EFGHIJKL


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  • 原文地址:https://www.cnblogs.com/liguangsunls/p/6761850.html
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