[已解决]哪里错了？？

孤世星辰 · 发表于 2020-3-28 20:24:07

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本帖最后由孤世星辰于 2020-3-28 20:25 编辑

test2.c: In function ‘main’:
test2.c:5: error: variable-sized object may not be initialized
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a[0]’)
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a[0]’)
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a[0]’)
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a[0]’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a[0]’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a[0]’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a’)
test2.c:8: error: variable-sized object may not be initialized
test2.c:9: warning: excess elements in array initializer
test2.c:9: warning: (near initialization for ‘b[0]’)
test2.c:9: warning: excess elements in array initializer
test2.c:9: warning: (near initialization for ‘b[0]’)
test2.c:9: warning: excess elements in array initializer
test2.c:9: warning: (near initialization for ‘b’)
test2.c:10: warning: excess elements in array initializer
test2.c:10: warning: (near initialization for ‘b[0]’)
test2.c:10: warning: excess elements in array initializer
test2.c:10: warning: (near initialization for ‘b[0]’)
test2.c:10: warning: excess elements in array initializer
test2.c:10: warning: (near initialization for ‘b’)
test2.c:11: warning: excess elements in array initializer
test2.c:11: warning: (near initialization for ‘b[0]’)
test2.c:11: warning: excess elements in array initializer
test2.c:11: warning: (near initialization for ‘b[0]’)
test2.c:11: warning: excess elements in array initializer
test2.c:11: warning: (near initialization for ‘b’)
test2.c:12: error: variable-sized object may not be initialized
test2.c:12: warning: excess elements in array initializer
test2.c:12: warning: (near initialization for ‘c[0]’)
test2.c:12: warning: excess elements in array initializer
test2.c:12: warning: (near initialization for ‘c’)
test2.c:14: error: expected ‘;’ before ‘)’ token
test2.c:16: error: expected ‘;’ before ‘)’ token

复制代码

1 #include<stdio.h>
2 int main()
3 {
4 int m=2,p=3,n=2;
5 int a[m][p]={
6 {1,2,3,},
7 {4,5,6,}};
8 int b[p][n]={
9 {1,4},
10 {2,5},
11 {3,6}};
12 int c[n][m]={0};
13 int i,j,k,row;
14 for(i=0,i<m;i++)
15 {
16 for(j=0,j<n;j++)
17 {
18 for(k=0;k<p;k++)
19 {
20 c[i][j]+=a[i][k]*b[k][i];
21 }
22 }
23 }
24 row=m>p?m:p;
25 for(i=0;i<row;i++)
26 {
27 //打印a
28 printf("| ");
29 for(j=0;j<p;j++)
30 {
31 if(i<m)
32 {
33 printf("\b%d ",a[i][j]);
34 printf("|");
35 }
36 else
37 {
38 printf("\b\b\b ");
39 }
40 }
41 //打印*
42 if(i==row/2)
43 {
44 printf(" * ");
45 }
46 else
47 {
48 printf(" ");
49 }
50 printf("| ");
51 //打印b
52 for(j=0;j<n;j++)
53 {
54 if(i<p)
55 {
56 printf("\b%d ",b[i][j]);
57 }
58 else
59 {
60 printf("\b\b\b ");
61 }
62 }
63 //打印=
64 if(i==row/2)
65 {
66 printf(" = ");
67 }
68 else
69 {
70 printf(" ");
71 }
72 //打印c
73 for(j=0;j<n;j++)
74 {
75 if(i<m)
76 {
77 printf("\b%d ",c[i][j]);
78 }
79 else
80 {
81 printf("\b\b\b ");
82 }
83 }
84 printf("\n");
85 }
86 }

复制代码

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这个是要求，要打印成这个样子
我没定义字符串数组啊，哪里错了？？

最佳答案

月排行榜 / 总排行榜

BngThea

2020-3-28 20:29:22

变量不能作为数组初始化的维度

跳转到最佳答案楼层

BngThea · 发表于 2020-3-28 20:29:22

这个最佳答案由 BngThea 给出，感谢 BngThea 的回答。

单击隐藏图章

变量不能作为数组初始化的维度

你们叫我春哥吧 · 发表于 2020-3-28 20:45:14

第五行数字长度里面只用用常亮不能用变量。你可以这样做

#define m 3
#define p 2

复制代码

孤世星辰 · 发表于 2020-3-28 21:02:58

BngThea 发表于 2020-3-28 20:29
变量不能作为数组初始化的维度

哦哦哦知道了

孤世星辰 · 发表于 2020-3-28 21:09:44

BngThea 发表于 2020-3-28 20:29
变量不能作为数组初始化的维度

[gushixingcheng@CentOS-VM Fishc]$ gcc test2.c && ./a.out
test2.c:2:10: warning: missing whitespace after the macro name
test2.c:3:10: warning: missing whitespace after the macro name
test2.c:4:10: warning: missing whitespace after the macro name
test2.c: In function ‘main’:
test2.c:7: error: expected expression before ‘=’ token
test2.c:10: error: expected expression before ‘=’ token
test2.c:14: error: expected expression before ‘=’ token
test2.c:16: error: expected expression before ‘=’ token
test2.c:18: error: expected expression before ‘=’ token
test2.c:20: error: expected expression before ‘=’ token
test2.c:26: error: expected expression before ‘=’ token
test2.c:31: error: expected expression before ‘=’ token
test2.c:54: error: expected expression before ‘=’ token
test2.c:75: error: expected expression before ‘=’ token

复制代码

这个是少了啥表达式？？

BngThea · 发表于 2020-3-28 21:16:06

孤世星辰发表于 2020-3-28 21:09
这个是少了啥表达式？？

大括号里最后面多了逗号

孤世星辰 · 发表于 2020-3-28 22:27:19

BngThea 发表于 2020-3-28 21:16
大括号里最后面多了逗号

我看了一下好像没有啊，哪里多了逗号？？

孤世星辰 · 发表于 2020-3-29 09:53:22

你们叫我春哥吧发表于 2020-3-28 20:45
第五行数字长度里面只用用常亮不能用变量。你可以这样做

[gushixingcheng@CentOS-VM Fishc]$ gcc test2.c && ./a.out
test2.c:2:10: warning: missing whitespace after the macro name
test2.c:3:10: warning: missing whitespace after the macro name
test2.c:4:10: warning: missing whitespace after the macro name
test2.c: In function ‘main’:
test2.c:7: error: expected expression before ‘=’ token
test2.c:10: error: expected expression before ‘=’ token
test2.c:14: error: expected expression before ‘=’ token
test2.c:16: error: expected expression before ‘=’ token
test2.c:18: error: expected expression before ‘=’ token
test2.c:20: error: expected expression before ‘=’ token
test2.c:26: error: expected expression before ‘=’ token
test2.c:31: error: expected expression before ‘=’ token
test2.c:54: error: expected expression before ‘=’ token
test2.c:75: error: expected expression before ‘=’ token

复制代码

这个还是有错，说多了逗号，但是我看了好像没有哇

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[已解决]哪里错了？？

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