求1！+2！+……+10！
#include<stdio.h>
void main(){
    int f(int p);
    int n , s;
    scanf("%d",&n);
    s=f(n);
    printf("s=%d\n",s);
}
int f(int p){
    int m = 1,s = 0;
    for(int i = 1;i<=p; i++){
        m = m * i;
        s = s + m;
    }
    return (s);
}
编译时的错误提示：--------------------Configuration: 2 - Win32 Debug--------------------
Compiling...
2.c
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2143: syntax error : missing ';' before 'type'
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2143: syntax error : missing ';' before 'type'
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2143: syntax error : missing ')' before 'type'
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2143: syntax error : missing ';' before 'type'
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2065: 'i' : undeclared identifier
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : warning C4552: '<=' : operator has no effect; expected operator with side-effect
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2059: syntax error : ')'
D:\Program Files (x86)\vc++\新建文件夹\MSDev98\Bin\2.c(11) : error C2143: syntax error : missing ';' before '{'
Error executing cl.exe.

2.obj - 7 error(s), 1 warning(s)