写了段代码 运行提示错误 刚学jsp 还不是很清楚
麻烦大虾们帮忙解决下
An error occurred at line: 14 in the jsp file: /check.jsp
Syntax error on token(s), misplaced construct(s)
11: String intro=request.getParameter("intro");
12: if(username==null){
13: username=" "; }
14: else if(username.equals(" ")){
15: out.println("用户名不能为空 请返回重新输入！")；
16: out.println(" <a href="check.jsp"+返回+" </a>"); }
17: else if(password1==null){
An error occurred at line: 14 in the jsp file: /check.jsp
Syntax error on token(s), misplaced construct(s)
11: String intro=request.getParameter("intro");
12: if(username==null){
13: username=" "; }
14: else if(username.equals(" ")){
15: out.println("用户名不能为空 请返回重新输入！")；
16: out.println(" <a href="check.jsp"+返回+" </a>"); }
17: else if(password1==null){
