<if test="labelVo != null OR imagesVo != null">
將大寫的OR修改爲小寫的or
<if test="labelVo != null or imagesVo != null">
<if test="labelVo != null OR imagesVo != null">
將大寫的OR修改爲小寫的or
<if test="labelVo != null or imagesVo != null">
不摸魚了,直接上代碼! 也參考了網上很多資料,請理解! <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</arti
下面請看一段代碼,父類(基類)SuperClass,子類(派生類)SubClass class SuperClass { private int n; SuperClass(int n) {