代码如下图:这样子在foreach中是无法修改class_history的。正确的应该是去掉??[]判断。 public function actionY(){$array [name>aaa,class_history>[[class_name>一班,class_num>1],[class_name>二班,class_num>2]]];foreach ($array[class_…
文章简介
论文名称:Developing unbiased estimation of atmospheric methane via machine learning and multiobjective programming based on TROPOMI and GOSAT data(基于TROPOMI和GOSAT数据,通过机器学习和多目标规划实现大气甲烷的无偏估…