下面，通过一个例子说明cftool可视化界面工具箱的用法.例如，已知x=[00.20.50.80.91.31.41.92.12.22.52.62.93.0];y=[1.27792.15962.73112.59742.40681.62151.41780.99550.96660.88370.96391.00311.1233...