543.X_train,X_test,Y_train,Y_test = train_test_split(iris.data,iris.target,test_size = 0.4,random_state = 0),在这段代码中,test_size = 0.4是指? 选项: A:测试样本占比40% B:训练样本占比40% C:测试精度为40% 样本 代码 发布时间:2024-06-06 09:39:26