博客：https://www.zhihu.com/question/365093004/answer/1538570153
基金对比工具： https://link.zhihu.com/?target=https%3A//www.howbuy.com/fundtool/compare.htm
极简投资组合计算器： https://m.jane7.com/v2/jane-calculator?ch=KE_MENU_J7DC
基金相关性自查： https://link.zhihu.com/?target=https%3A//qieman.com/portfolios/create