sub cmd1_click()dim s1,s2 as stringdim l as integerdim i as integerdim str as stringstr=text1.textl=len(str)if l>0 thenfor i=1 to ls1=mid(str,i,1)if asc(s1)>=97 and asc(s1)<=122 then'如果是小写则转大写s2=s2 & ucase(s1)else'其它字符不变s2=s2 & s1end ifnext i'重新组织转后字符串text1.text=s2elsemsgbox "请在文本框