c语言中函数初学者的问题
本帖最后由 我是一只小小鸟 于 2018-12-25 20:39 编辑本函数实现对主函数中数组数据进行从小到大排序得功能。
#include <stdio.h>
voidpupple (int a[],int n );
int main()
{
int a[]={3,2,1,0,9,8,7,4,5,6};
int i,n;
scanf("%d",&n);
pupple(a,n);
for(i=0;i<n;i++)
printf("%d ", a );
return 0;
}
voidpupple (int a[],int n )
{
int j,k;
for(j=0;j<n-1;j++)
{
if(a>a)
{
k=a;
a=a;
a=k;
}
}
}
我应该怎么返回值呀？ {:10_257:}快来大佬呀！ 什么返回值？
2个函数，一个是main函数，一个是pupple函数，2个函数的数据大部分是存在栈中的，用完了指针就不再指向了。
0804846d <main>:
804846d: 55 push ebp
804846e: 89 e5 mov ebp,esp
8048470: 83 e4 f0 and esp,0xfffffff0
8048473: 83 ec 40 sub esp,0x40
8048476: c7 44 24 18 03 00 00 mov DWORD PTR ,0x3
804847d: 00
804847e: c7 44 24 1c 02 00 00 mov DWORD PTR ,0x2
8048485: 00
8048486: c7 44 24 20 01 00 00 mov DWORD PTR ,0x1
804848d: 00
804848e: c7 44 24 24 00 00 00 mov DWORD PTR ,0x0
8048495: 00
8048496: c7 44 24 28 09 00 00 mov DWORD PTR ,0x9
804849d: 00
804849e: c7 44 24 2c 08 00 00 mov DWORD PTR ,0x8
80484a5: 00
80484a6: c7 44 24 30 07 00 00 mov DWORD PTR ,0x7
80484ad: 00
80484ae: c7 44 24 34 04 00 00 mov DWORD PTR ,0x4
80484b5: 00
80484b6: c7 44 24 38 05 00 00 mov DWORD PTR ,0x5
80484bd: 00
80484be: c7 44 24 3c 06 00 00 mov DWORD PTR ,0x6
80484c5: 00
80484c6: 8d 44 24 10 lea eax,
80484ca: 89 44 24 04 mov DWORD PTR ,eax
80484ce: c7 04 24 60 86 04 08 mov DWORD PTR ,0x8048660
80484d5: e8 86 fe ff ff call 8048360 <__isoc99_scanf@plt>
80484da: 8b 44 24 10 mov eax,DWORD PTR
80484de: 89 44 24 04 mov DWORD PTR ,eax
80484e2: 8d 44 24 18 lea eax,
80484e6: 89 04 24 mov DWORD PTR ,eax
80484e9: e8 38 00 00 00 call 8048526 <pupple>
80484ee: c7 44 24 14 00 00 00 mov DWORD PTR ,0x0
80484f5: 00
80484f6: eb 1d jmp 8048515 <main+0xa8>
80484f8: 8b 44 24 14 mov eax,DWORD PTR
80484fc: 8b 44 84 18 mov eax,DWORD PTR
8048500: 89 44 24 04 mov DWORD PTR ,eax
8048504: c7 04 24 63 86 04 08 mov DWORD PTR ,0x8048663
804850b: e8 20 fe ff ff call 8048330 <printf@plt>
8048510: 83 44 24 14 01 add DWORD PTR ,0x1
8048515: 8b 44 24 10 mov eax,DWORD PTR
8048519: 39 44 24 14 cmp DWORD PTR ,eax
804851d: 7c d9 jl 80484f8 <main+0x8b>
804851f: b8 00 00 00 00 mov eax,0x0
8048524: c9 leave
8048525: c3 ret
08048526 <pupple>:
8048526: 55 push ebp
8048527: 89 e5 mov ebp,esp
8048529: 83 ec 10 sub esp,0x10
804852c: c7 45 f8 00 00 00 00 mov DWORD PTR ,0x0
8048533: eb 7d jmp 80485b2 <pupple+0x8c>
8048535: 8b 45 f8 mov eax,DWORD PTR
8048538: 8d 14 85 00 00 00 00 lea edx,
804853f: 8b 45 08 mov eax,DWORD PTR
8048542: 01 d0 add eax,edx
8048544: 8b 10 mov edx,DWORD PTR
8048546: 8b 45 f8 mov eax,DWORD PTR
8048549: 83 c0 01 add eax,0x1
804854c: 8d 0c 85 00 00 00 00 lea ecx,
8048553: 8b 45 08 mov eax,DWORD PTR
8048556: 01 c8 add eax,ecx
8048558: 8b 00 mov eax,DWORD PTR
804855a: 39 c2 cmp edx,eax
804855c: 7e 50 jle 80485ae <pupple+0x88>
804855e: 8b 45 f8 mov eax,DWORD PTR
8048561: 8d 14 85 00 00 00 00 lea edx,
8048568: 8b 45 08 mov eax,DWORD PTR
804856b: 01 d0 add eax,edx
804856d: 8b 00 mov eax,DWORD PTR
804856f: 89 45 fc mov DWORD PTR ,eax
8048572: 8b 45 f8 mov eax,DWORD PTR
8048575: 8d 14 85 00 00 00 00 lea edx,
804857c: 8b 45 08 mov eax,DWORD PTR
804857f: 01 c2 add edx,eax
8048581: 8b 45 f8 mov eax,DWORD PTR
8048584: 83 c0 01 add eax,0x1
8048587: 8d 0c 85 00 00 00 00 lea ecx,
804858e: 8b 45 08 mov eax,DWORD PTR
8048591: 01 c8 add eax,ecx
8048593: 8b 00 mov eax,DWORD PTR
8048595: 89 02 mov DWORD PTR ,eax
8048597: 8b 45 f8 mov eax,DWORD PTR
804859a: 83 c0 01 add eax,0x1
804859d: 8d 14 85 00 00 00 00 lea edx,
80485a4: 8b 45 08 mov eax,DWORD PTR
80485a7: 01 c2 add edx,eax
80485a9: 8b 45 fc mov eax,DWORD PTR
80485ac: 89 02 mov DWORD PTR ,eax
80485ae: 83 45 f8 01 add DWORD PTR ,0x1
80485b2: 8b 45 0c mov eax,DWORD PTR
80485b5: 83 e8 01 sub eax,0x1
80485b8: 3b 45 f8 cmp eax,DWORD PTR
80485bb: 0f 8f 74 ff ff ff jg 8048535 <pupple+0xf>
80485c1: c9 leave
80485c2: c3 ret
80485c3: 66 90 xchg ax,ax
80485c5: 66 90 xchg ax,ax
80485c7: 66 90 xchg ax,ax
80485c9: 66 90 xchg ax,ax
80485cb: 66 90 xchg ax,ax
80485cd: 66 90 xchg ax,ax
80485cf: 90 nop
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