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孤世星辰 发表于 2020-3-28 20:24:07

哪里错了？？

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’)
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a’)
test2.c:6: warning: excess elements in array initializer
test2.c:6: warning: (near initialization for ‘a’)
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’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a’)
test2.c:7: warning: excess elements in array initializer
test2.c:7: warning: (near initialization for ‘a’)
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’)
test2.c:9: warning: excess elements in array initializer
test2.c:9: warning: (near initialization for ‘b’)
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’)
test2.c:10: warning: excess elements in array initializer
test2.c:10: warning: (near initialization for ‘b’)
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’)
test2.c:11: warning: excess elements in array initializer
test2.c:11: warning: (near initialization for ‘b’)
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’)
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
1 #include<stdio.h>
2 int main()
3 {
4       int m=2,p=3,n=2;
5       int a={
6             {1,2,3,},
7             {4,5,6,}};
8       int b={
9             {1,4},
10             {2,5},
11             {3,6}};
12       int c={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+=a*b;
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);
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);
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);
78                      }
79                      else
80                      {
81                               printf("\b\b\b ");
82                      }
83             }
84             printf("\n");
85       }
86 }

https://xxx.ilovefishc.com/forum/201604/27/010636hqzxaehdeoxqnmfn.png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？？

BngThea 发表于 2020-3-28 20:29:22

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

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

$ 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

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

$ 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

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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哪里错了？？