若串S1=‘ABCDEFG’ S2=‘9898’ S3=‘TTT’ S4=‘012345’ 执行concat(replace(S1 substr(S1 length(S

大学网课 已帮助 人

若串S1=‘ABCDEFG’, S2=‘9898’ ,S3=‘TTT’,S4=‘012345’,执行concat(replace(S1,substr(S1,length(S2),length(S3)),S3),substr(S4,index(S2,‘8’),length(S2)))其结果为()。

A.ABCTTTG0123

B.ABCDTTT2345

C.ABCTTTG1234

D.ABCDTTT1234

若串S1=‘ABCDEFG’  S2=‘9898’  S3=‘TTT’ S4=‘012345’ 执行concat(replace(S1 substr(S1 length(S

热搜:腰膨大(L1~S2)病变可出现()