我写的程序如下(是在书上看的)
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8 e$ y4 G+ D- w: y! L* S# include  <iostream.h>+ i& W$ i/ Z3 o2 {- t

, H# h8 Z, b& ~' f3 i2 L& F# v! q, _ # include  <iomanip.h>
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) }8 s/ Z( f- W8 R4 O4 ?  void pr_scores(float scores[ ]);               //the prototype
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; H: o. N( r; _1 F( \3 R  void calr_average(float acerage,float scores,char s_name[ ]);3 q* l) t+ T- u4 ~' [2 {

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: U5 g* i6 x  j+ c4 o9 B; E  void main ( )
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( F4 b; ~4 g# U1 o% f0 ~     char  s_name[ ] ="Tri star University";7 t$ N8 y) `* Z0 R  e. Z- w

7 @/ w0 \' t  k% n) L, m: Y' F8 K     float scores[6] = {54.6,48.6, 36.6,66.6,72.6, 78.6};
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     float average =0.0;5 l: x" B0 Z" V6 l' |2 A
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                                       // call all function to print array.$ Z# [6 f+ ~2 q6 ]$ I( k/ z

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    pr_scores(scores);
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0 U: p' E6 C6 l% e    calr_average(average,scores,  s_name);: z, g2 o6 t3 D3 L9 ~$ n: }+ W

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9 c0 X, W: q- d   return;+ U4 _& f: N- V0 W+ F7 @0 l9 o/ Z$ X
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                                          //the frist portotype.
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   void pr_scores (float scores[6])! G+ P, y% J: `
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$ m! @4 e- K4 G$ R6 t) n      int ctr;
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     cout << "Here are your scores: ";$ \& \& ^5 G- H+ X

/ x( E3 S3 f. {* e1 U. ?     for (ctr=0,ctr<6, ctr++)4 l7 O0 |1 H  @  a6 W: \* t3 f2 E9 J1 E

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          cout << setprecision(2) << scores[ctr] <<"\n";
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    return;' B) f8 i7 S; M4 n6 |! r
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      }
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) @" N2 a& D- A7 {  I: t* ^; X                                      //the secend prototype.. E6 |) q( Y/ T6 z0 ]& [: t0 v* k+ h
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            void calr_average (float average,float scores[6], char s_name[ ])  R; C: e" E" t. Q# K

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% c; F1 R* ?" D% p            int ctr;+ B' [1 Z  T' r
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           for (ctr=0;ctr< 6;ctr++)4 w8 @0 c: m' B4 o7 R3 G0 [8 ?
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          average += scores[ctr];) Y8 d1 p4 ?6 P" i, @, x; Y5 g
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         }
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                                    //computer the average;
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           average /= float(6);* l) @* r4 N- l3 ], ]( a

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    cout << "At" <<s_name<<", your class average is "<< setprecision(2) << average;
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% o4 y& B" `0 ]% N           return ;
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: }0 e( Z+ w% ~( X9 r用:g++ -o  xxxx  xxxx.cpp 运行后的提示为
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1 R+ O5 f, }* i. r, W2 A' w  rmust return `int'
0 t7 O8 d1 E' y9 P+ jc++test.cpp: In function `int main(...)':3 N/ ^6 A! V2 g2 b
c++test.cpp:18: error: cannot convert `float*' to `float' for argument `2' to `void calr_average(float, float, char*)'
7 {, f/ Y- x% Y) b* Tc++test.cpp:20: error: return-statement with no value, in function returning 'int'
& y7 Z3 `( P- w0 X2 vc++test.cpp: In function `void pr_scores(float*)':
8 e- q8 R! T: \c++test.cpp:31: error: expected `;' before ')' token0 Y5 z% d& n% @) @( p
c++test.cpp:35: error: expected primary-expression before "return"4 a. F6 g% s  {5 ?2 m& K' d1 q
c++test.cpp:35: error: expected `;' before "return"# Q3 R% a9 Y! x, o; Z; Z- b
c++test.cpp:35: error: expected primary-expression before "return". u9 ]2 e% [/ ]; ~
c++test.cpp:35: error: expected `)' before "return"
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请高手指点!!　　　　　　

#include <iostream.h>* p% c# k8 H6 G) J( P
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#include <iomanip.h>
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void pr_scores(float scores[ ]); //the prototype/ u/ v8 D2 d+ J1 v# h
void calr_average(float acerage,float *scores,char s_name[ ]);, C. _( V5 s0 M7 `

2 @' q6 d4 @; D2 Iint main ( )& _, }; Y9 m/ ^, l6 J9 H  ~, d
{
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! K9 _& m5 i3 B; H# F. E/ `+ `; M' ichar s_name[ ] ="Tri star University";
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float scores[6] = {54.6,48.6, 36.6,66.6,72.6, 78.6};
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0 _" R/ w& z8 n# h& u% m7 Nfloat average =0.0;
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) n9 y" Z3 j1 k/ G// call all function to print array.; y+ |$ z2 Z* Q' I* e

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6 q) _# z% I( I  r0 F) p* c0 _/ tpr_scores(scores);
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calr_average(average,scores, s_name);6 P+ c+ n; V/ @- z3 M) i5 P$ S! u
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& u5 D! R+ z( `return 0;
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//the frist portotype.
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. ^! \' b! ^% V6 r# Ivoid pr_scores (float scores[6])# K% a: T# ^: z8 v# l, s
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! v) {, h  `+ t! H* J4 Pint ctr;
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8 N9 l1 |9 `# Y3 T- Hcout << "Here are your scores: ";
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        for (ctr=0;ctr<6; ctr++)& U; b6 {6 ?: J
                cout << setprecision(2) << scores[ctr] <<"\n";
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; ?5 @# S9 P( p, _0 L. Areturn;
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0 ^  }9 J1 r! }+ k//the secend prototype.4 d3 \  j( s( T8 p" ]; u9 T

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void calr_average (float average,float scores[6], char s_name[ ])
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int ctr;
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average += scores[ctr];3 C# u) S5 }4 a3 k# D% v' o. Y4 c
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//computer the average;" o) u0 L6 g+ j* m+ s; o
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average /= float(6);$ ?' e! R3 m+ A1 B& I& g

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cout << "At" <<s_name<<", your class average is "<< setprecision(2) << average;" g% X6 d" R  ?4 b
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还是不可以
0 j, S$ A9 y9 F1 z出现的错误提示更多
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将函数写义处的void calr_average (float average,float scores[6], char s_name[ ])2 r$ L8 ^# Q' T6 z- E4 i0 U7 w9 f- g, H) A
也改为void calr_average (float average,float *scores, char s_name[ ])- L. G  E; W+ F
void pr_scores (float scores[6])改为void pr_scores (float *scores)　　　　　　

不会的，我已经调试通过的，且能够正确运行
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+ H5 K9 r6 T, \6 S0 H#include <iostream.h>
5 g2 K% J: |5 {7 R7 i/ t: f#include <iomanip.h>9 k4 R/ p: ^/ Z4 Y1 x; `! ^

+ z6 f6 N5 l/ }# I* W* T! p* Lvoid pr_scores(float* scores); //the prototype7 c9 T6 K* [# X7 W5 L3 U+ t5 B5 S
void calr_average(float acerage,float *scores,char* s_name);0 j. h& m& f- y/ {* R: Y; m
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int main ( ): Q% G( u- M5 n5 ]
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        char s_name[ ] ="Tri star University";& t( ~; S. P1 r
        float scores[6] = {54.6,48.6, 36.6,66.6,72.6, 78.6};
! P+ u( K3 [# t$ o$ F, R, b        float average =0.0;
8 k2 C3 V, {3 c4 P$ W2 L        // call all function to print array.
: B, J1 y) S: O6 k: B* j) |( X        pr_scores(scores);
# ^. E9 B+ K# l0 L2 z$ M2 ?6 P        calr_average(average,scores, s_name);' j# ^6 {, O; [4 m! a6 d5 t% {
        return 0;( P. x5 J4 T; S& j7 l7 _; Q) K
}
! u- _7 A" I, w3 r$ M+ Z4 r4 R; m//the frist portotype.  {# P3 h" D/ S
void pr_scores (float *scores)
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        int ctr;
$ B4 y0 o; I6 F+ A8 ~$ l8 r        cout << "Here are your scores: ";$ t7 K5 R# }3 n
        for (ctr=0;ctr<6; ctr++)
/ W9 f3 N' l* f* }: P; r2 J# w  _) d" H                cout << setprecision(2) << scores[ctr] <<"\n";0 K5 o5 T; U. z2 ^5 j% j
        return;' W% A. t5 ]5 |- W3 c* H& s+ E
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//the secend prototype.0 k4 J' C5 e$ S( r8 ^' ?
void calr_average (float average,float* scores, char *s_name)! @/ _. e; |& R2 b
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        int ctr;
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                average += scores[ctr];: m0 R1 n! D+ J% \  b9 X1 N' J5 U
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//computer the average;, s8 u% s3 i) v- s7 Y" N
        average /= float(6);( D7 u5 n1 |% n; ?' `+ P
        cout << "At" <<s_name<<", your class average is "<< setprecision(2) << average;, H( T: J2 E! }) L
        return ;
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" m9 m1 z0 g" ~Here are your scores: 55, V) @; N) m* n* C, `( @
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4 M# f3 r9 C1 F9 J8 J% CAtTri star University, your class average is 60