不能 当天的净值要第二天才能知道
新浪有个基金净值预测系统挺不错的.
http://biz.finance.sina.com.cn/fund/openfund/openfund.php?symbol_list=050002,180001&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90&order=lsjz&by=desc&from=90