excel单元格内不能 输入空格 不能输入小写字母答:可以用数据有效性做出来呀。你不要选序列,选自定义,然后输入下列公式:=AND(CODE(MID(SUBSTITUTE(A1," ",),ROW(INDIRECT("$1:$"&LEN(SUBSTITUTE(A1," ",))),1))>64,CODE(MID(SUBSTITUTE(A1," ",),ROW(INDIRECT("$1:$"&LEN(SUBSTITUTE(A1," ",))),1))<91,ISERROR(FIND(" ",A...