有趣的字符串拼接

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	//选课班拼接出来
	xkb_link : function() {
		var trbody = $("#stu_table tbody tr");
		var xzxk_data = `[`;
		$.each(trbody, function() {
			var tdArr = $(this).children();
			var ohtml = "";
			if (tdArr.eq(0).find('input[type="checkbox"]').is(":checked")) {
				var c1 = tdArr.eq(0).find('input[type="checkbox"]').val();
				var c2 = tdArr.eq(1).find('select :selected').val();
				var c3 = tdArr.eq(2).find('select :selected').val();
				ohtml += `{"subject":{ "code":"${c1}"}, "clazz":{"clzCode":${c2}L},"examCategory":${c3}}`;
			//ohtml += `{"schCode":"${schoolId}","subCode":"${c1}","clzCode":"${c2}","examCategory":"${c3}"}`;
			}
			;
			xzxk_data += ohtml;
		});
		xzxk_data += "]";
		return xzxk_data;
	},

private static final long serialVersionUID = 7301089873075004436L;
	private String stuClzCode;// 学生班级,系统生成，唯一编号
	private Long schCode;// 学校编号
	private Student student;// 学生
	private Clazz clazz;// 班级
	private Integer examCategory;// 考试类型(选课类型)
	private String status;// 状态,E-启用 D-停用
	private com.moofen.core.entity.sys.base.Subject subject;// 对应基础数据-学科

String selection = request.getParameter("selection");
		List<StudentClazzDecompression> stuClzList = JSON.parseArray(selection,StudentClazzDecompression.class);

[{"subject":{ "code":"1"}, "clazz":{"clzCode":11280217001L},"examCategory":0}{"subject":{ "code":"2"}, "clazz":{"clzCode":11280217001L},"examCategory":0}{"subject":{ "code":"3"}, "clazz":{"clzCode":11280217001L},"examCategory":0}]