if (line != null)是这个
时间: 2024-03-09 19:46:49 浏览: 22
如果第二个if语句没有执行,那么有可能是`line`为空,导致第二个if语句中的代码没有执行。因此,你可以在第一个if语句中添加一个判断,看看是否存在`LineRenderer`组件,例如:
```
if (id == "" || go.name.Contains(id))
{
LineRenderer line = go.GetComponent<LineRenderer>();
if (line != null)
{
if (go.name.Contains("BerthingArea"))
{
// ...
}
else if (go.name.Contains("NotifyArea"))
{
// ...
}
}
}
```
这样可以确保只有存在`LineRenderer`组件的游戏对象才会执行第二个if语句中的代码。如果还是无法解决问题,可以考虑在`Debug.Log($"go: {go}")`语句后面添加一个`Debug.Log($"line: {line}")`语句,看看`line`的值是否为`null`。
相关问题
update inspection_standard_check <trim prefix="set" suffixOverrides=","> <if test="lineCode != null and lineCode != ''"> line_code = #{lineCode}, </if> <if test="lineCode == null and lineCode ==
空字符串"> line_code = null, </if> <if test="checkName != null and checkName != ''"> check_name = #{checkName}, </if> <if test="checkName == null and checkName == ''"> check_name = null, </if> <if test="checkMethod != null and checkMethod != ''"> check_method = #{checkMethod}, </if> <if test="checkMethod == null and checkMethod == ''"> check_method = null, </if> <if test="description != null and description != ''"> description = #{description}, </if> <if test="description == null and description == ''"> description = null, </if> <if test="sortNo != null"> sort_no = #{sortNo}, </if> <if test="sortNo == null"> sort_no = null, </if> <if test="updateBy != null and updateBy != ''"> update_by = #{updateBy}, </if> <if test="updateBy == null and updateBy == ''"> update_by = null, </if> <if test="updateTime != null"> update_time = #{updateTime}, </if> <if test="updateTime == null"> update_time = null, </if> </trim> where id = #{id}
请问这段代码是用来做什么的?
<select id="selectAll" resultMap="tblTicketCardDistributionMap"> select * from TBL_TICKET_CARD_DISTRIBUTION <where> <choose> <when test="query.orderType != null and query.orderType != '' and query.orderType =='03'"> and ORDER_TYPE = #{query.orderType} and ( <if test="query.inStationId != null and query.inStationId != '' "> IN_STATION_ID = #{query.inStationId} </if> <if test="query.outStationId != null and query.outStationId != '' "> or OUT_STATION_ID = #{query.outStationId} </if> ) </when> <otherwise> <if test="query.orderType != null and query.orderType != '' "> and ORDER_TYPE = #{query.orderType} </if> <if test="query.inStationId != null and query.inStationId != '' "> and IN_STATION_ID = #{query.inStationId} </if> <if test="query.outStationId != null and query.outStationId != '' "> or OUT_STATION_ID = #{query.outStationId} </if> </otherwise> </choose> <if test="query.lineId != null and query.lineId != '' "> and LINE_ID = #{query.lineId} </if> <if test="query.stationId != null and query.stationId != '' "> and STATION_ID = #{query.stationId} </if> <if test="query.operatorId != null and query.operatorId != '' "> and OPERATOR_ID = #{query.operatorId} </if> <if test="query.curDay != null and query.curDay != '' "> and CUR_DAY = #{query.curDay} </if> <if test="query.beginTime != null and query.beginTime != '' "> and OPERATE_TIME between #{query.beginTime} and #{query.endTime} </if> </where> </select>报错语法有问题,修改正确的
根据报错信息,需要看一下具体是哪个语法有问题。不过根据代码,有一个语法问题:
在`<when>`标签中,使用了`<if>`标签,应该改为`${}`,例如:
```
<when test="query.orderType != null and query.orderType != '' and query.orderType =='03'">
and ORDER_TYPE = #{query.orderType} and (
${query.inStationId != null and query.inStationId != '' ? 'IN_STATION_ID = #{query.inStationId}' : ''}
${query.outStationId != null and query.outStationId != '' ? ' or OUT_STATION_ID = #{query.outStationId}' : ''}
)
</when>
```
这样应该就能解决语法问题了。