运行结果有误，想知道是哪里错了
#include<stdio.h>
int main()
{
int p=0,q=0,r=0;
void stat(int(*p)[4],int n,int *positive,int *zero,int *negative);
int b[3][4]={19,94,3,-28,-20,0,3,4,16,-25,2,0};
stat(b,3,&p,&q,&r);
printf("该数组中正数，零，负数的个数分别为: %d,%d,%d",p,q,r);
return 0;
}
void stat(int(*p)[4],int n,int *positive,int *zero,int *negative)
{
int i,j;
for(i=0;i<n;i++)
for(j=0;j<=3;j++)
{
if (*(p[i]+j)>0)
*positive++ ;
else if (*(p[i]+j)<0)
*negative++ ;
else
*zero++;
}
if (*(p[i]+j)>0)
(*positive)++ ;
else if (*(p[i]+j)<0)
(*negative)++ ;
else
(*zero)++;
}
里面内容这样改
原因是++优先级高于*，不加括号是地址值加1，而不是地址指向的变量值加1，加括号即可
#include<stdio.h>
void stat(int(*p)[4],int n,int *positive,int *zero,int *negative);
int main() {
int p=0,q=0,r=0;
int b[3][4]={19,94,3,-28,-20,0,3,4,16,-25,2,0};
stat(b,3,&p,&q,&r);
printf("该数组中正数，零，负数的个数分别为: %d,%d,%d",p,q,r);
return 0;
}
void stat(int(*p)[4],int n,int *positive,int *zero,int *negative) {
int i,j;
for(i=0;i<n;i++)
for(j=0;j<=3;j++) {
if (*(p[i]+j)>0)
(*positive)++ ;
else if (*(p[i]+j)<0)
(*negative)++ ;
else
(*zero)++;
}
}
参考下面：
//C++ Operators
// Operators specify an evaluation to be performed on one of the following:
// One operand (unary operator)
// Two operands (binary operator)
// Three operands (ternary operator)
// The C++ language includes all C operators and adds several new operators.
// Table 1.1 lists the operators available in Microsoft C++.
// Operators follow a strict precedence which defines the evaluation order of
//expressions containing these operators. Operators associate with either the
//expression on their left or the expression on their right; this is called
//“associativity.” Operators in the same group have equal precedence and are
//evaluated left to right in an expression unless explicitly forced by a pair of
//parentheses, ( ).
// Table 1.1 shows the precedence and associativity of C++ operators
// (from highest to lowest precedence).
//
//Table 1.1 C++ Operator Precedence and Associativity
// The highest precedence level is at the top of the table.
//+------------------+-----------------------------------------+---------------+
//| Operator | Name or Meaning | Associativity |
//+------------------+-----------------------------------------+---------------+
//| :: | Scope resolution | None |
//| :: | Global | None |
//| [ ] | Array subscript | Left to right |
//| ( ) | Function call | Left to right |
//| ( ) | Conversion | None |
//| . | Member selection (object) | Left to right |
//| -> | Member selection (pointer) | Left to right |
//| ++ | Postfix increment | None |
//| -- | Postfix decrement | None |
//| new | Allocate object | None |
//| delete | Deallocate object | None |
//| delete[ ] | Deallocate object | None |
//| ++ | Prefix increment | None |
//| -- | Prefix decrement | None |
//| * | Dereference | None |
//| & | Address-of | None |
//| + | Unary plus | None |
//| - | Arithmetic negation (unary) | None |
//| ! | Logical NOT | None |
//| ~ | Bitwise complement | None |
//| sizeof | Size of object | None |
//| sizeof ( ) | Size of type | None |
//| typeid( ) | type name | None |
//| (type) | Type cast (conversion) | Right to left |
//| const_cast | Type cast (conversion) | None |
//| dynamic_cast | Type cast (conversion) | None |
//| reinterpret_cast | Type cast (conversion) | None |
//| static_cast | Type cast (conversion) | None |
//| .* | Apply pointer to class member (objects) | Left to right |
//| ->* | Dereference pointer to class member | Left to right |
//| * | Multiplication | Left to right |
//| / | Division | Left to right |
//| % | Remainder (modulus) | Left to right |
//| + | Addition | Left to right |
//| - | Subtraction | Left to right |
//| << | Left shift | Left to right |
//| >> | Right shift | Left to right |
//| < | Less than | Left to right |
//| > | Greater than | Left to right |
//| <= | Less than or equal to | Left to right |
//| >= | Greater than or equal to | Left to right |
//| == | Equality | Left to right |
//| != | Inequality | Left to right |
//| & | Bitwise AND | Left to right |
//| ^ | Bitwise exclusive OR | Left to right |
//| | | Bitwise OR | Left to right |
//| && | Logical AND | Left to right |
//| || | Logical OR | Left to right |
//| e1?e2:e3 | Conditional | Right to left |
//| = | Assignment | Right to left |
//| *= | Multiplication assignment | Right to left |
//| /= | Division assignment | Right to left |
//| %= | Modulus assignment | Right to left |
//| += | Addition assignment | Right to left |
//| -= | Subtraction assignment | Right to left |
//| <<= | Left-shift assignment | Right to left |
//| >>= | Right-shift assignment | Right to left |
//| &= | Bitwise AND assignment | Right to left |
//| |= | Bitwise inclusive OR assignment | Right to left |
//| ^= | Bitwise exclusive OR assignment | Right to left |
//| , | Comma | Left to right |
//+------------------+-----------------------------------------+---------------+
少了三对括号，修改如下，供参考：
#include<stdio.h>
int main()
{
int p = 0, q = 0, r = 0;
void stat(int(*p)[4], int n, int* positive, int* zero, int* negative);
int b[3][4] = { 19,94,3,-28,-20,0,3,4,16,-25,2,0 };
stat(b, 3, &p, &q, &r);
printf("该数组中正数，零，负数的个数分别为: %d,%d,%d", p, q, r);
return 0;
}
void stat(int(*p)[4], int n, int* positive, int* zero, int* negative)
{
int i, j;
for (i = 0; i < n; i++)
for (j = 0; j <= 3; j++)
{
if (*(p[i] + j) > 0)
(*positive)++; //*positive++ ; 修改
else if (*(p[i] + j) < 0)
(*negative)++; //*negative++ ; 修改
else
(*zero)++; // *zero++; 修改
}
}