设S='I am a student',T='good',Q='worker'.求:
设S='I am a student',T='good',Q='worker'.求:
Strlength (S)
SubString(&sub,s,8,7)
SubString(&sub,T,2,1)
Index(S,'a',1)
Index(S,T,1)
Replace(&s,'student',Q)
Concat(&N,Substring(&V,S,6,2)
Concat(&p,T,SubString(&W,S,7,8)))
这是数据结构的一题课后练习题