老师好，官网说 “A numerical entry box will accept only numbers, commas and a decimal point, with no additional words or formulas. There is no room to show your work and the math editor function is not available.” 这意思是如果是50% ， 就打入0.5 不打入50% 是吗？ 小数点一般保留几位？ 谢谢。
