JSP里returnflag 有什么用途？onClick="location.href='<%=path %>/pcc/loan/loanBusiness.do?module=quer

onClick="location.href='<%=path %>/pcc/loan/loanBusiness.do?module=queryid&loan_id=<%--=lo.getLoan_id()--%>&returnflag=<%--=flag--%>'">比如这个

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纯粹一个变量，至于有什么用问作者

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