简述空串和空格串的区别.2.设s=’I AM A STUDENT’,t=’GOOD’,q=’WORKER’.求:(1) StrLength(s) (2) StrLength(t) (3) SubString(s,8,7) (4) SubString(t,2,1) (5) Index(s,‘A’) (6) Index(s,t) (7) Replace(s,‘STUDENT’,q) (8) Concat(
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![简述空串和空格串的区别.2.设s=’I AM A STUDENT’,t=’GOOD’,q=’WORKER’.求:(1) StrLength(s) (2) StrLength(t) (3) SubString(s,8,7) (4) SubString(t,2,1) (5) Index(s,‘A’) (6) Index(s,t) (7) Replace(s,‘STUDENT’,q) (8) Concat(](/uploads/image/z/10576298-2-8.jpg?t=%E7%AE%80%E8%BF%B0%E7%A9%BA%E4%B8%B2%E5%92%8C%E7%A9%BA%E6%A0%BC%E4%B8%B2%E7%9A%84%E5%8C%BA%E5%88%AB.2.%E8%AE%BEs%3D%E2%80%99I+AM+A+STUDENT%E2%80%99%2Ct%3D%E2%80%99GOOD%E2%80%99%2Cq%3D%E2%80%99WORKER%E2%80%99.%E6%B1%82%EF%BC%9A%281%29+StrLength%28s%29+%282%29+StrLength%28t%29+%283%29+SubString%28s%2C8%2C7%29+%284%29+SubString%28t%2C2%2C1%29+%285%29+Index%28s%2C%E2%80%98A%E2%80%99%29+%286%29+Index%28s%2Ct%29+%287%29+Replace%28s%2C%E2%80%98STUDENT%E2%80%99%2Cq%29+%288%29+Concat%28)
简述空串和空格串的区别.2.设s=’I AM A STUDENT’,t=’GOOD’,q=’WORKER’.求:(1) StrLength(s) (2) StrLength(t) (3) SubString(s,8,7) (4) SubString(t,2,1) (5) Index(s,‘A’) (6) Index(s,t) (7) Replace(s,‘STUDENT’,q) (8) Concat(
简述空串和空格串的区别.2.设s=’I AM A STUDENT’,t=’GOOD’,q=’WORKER’.求:(1) StrLength(s) (2) StrLength(t) (3) SubString(s,8,7) (4) SubString(t,2,1) (5) Index(s,‘A’) (6) Index(s,t) (7) Replace(s,‘STUDENT’,q) (8) Concat(SubString(s,6,2),Concat(t,SubString(s,7,8)))
简述空串和空格串的区别.2.设s=’I AM A STUDENT’,t=’GOOD’,q=’WORKER’.求:(1) StrLength(s) (2) StrLength(t) (3) SubString(s,8,7) (4) SubString(t,2,1) (5) Index(s,‘A’) (6) Index(s,t) (7) Replace(s,‘STUDENT’,q) (8) Concat(
空格串表示只含空格的串.空串表示所含字符数为0的串.譬如说串" "是含两个空格的串,但他不是空串. 只需理解空格也是字符就行了