摘要:
参考: https://cloud.tencent.com/developer/article/1594124 阅读全文
摘要:
1、th:if比较字符串 判断是不是为空:null: <span th:if="${name} != null">不为空</span> <span th:if="${name1} == null">为空</span> 判断是不是为空字符串: “” <span th:if="${#strings.is 阅读全文