结构体数组未定义

来源：百度知道 编辑：UC知道 时间：2024/06/21 21:16:47
明明已经定义了结构以数组 却提示没定义
struct commodity
{
char* strType;
char* strName;
int nPrice;
}comm[]={
"日常用品", "牙刷", 2,
"日常用品", "牙膏", 3,
"日常用品", "毛巾", 5,
"日常用品", "脸盆", 12,

"文具", "铅笔", 1,
"文具", "圆珠笔", 2,
"文具", "钢笔", 10,
"文具", "水彩笔",12,

"球类", "篮球", 66,
"球类", "足球", 120,
"球类", "乒乓球", 3,
"球类", "羽毛球", 15,
};

for (int i=0; i<4; i++)
{
m_lstName.AddString(CString(comm[i].strName));
}

错误：
1>d:\我的项目\shopping2\shopping2\shopping2dlg.cpp(150) : error C2065: 'comm' : undeclared identifier
1>d:\我的项目\shopping2\shopping2\shopping2dlg.cpp(150) : error

在你程序中，下面的定义方法是不对的:
struct commodity
{
char* strType; /*指针*/
char* strName; /*指针*/
int nPrice;
}comm[]={
"日常用品", "牙刷", 2, /*由于strType和strName是指针，在没有申请内存前是不能赋值的*/
"日常用品", "牙膏", 3,
"日常用品", "毛巾", 5,
"日常用品", "脸盆", 12,

"文具", "铅笔", 1,
"文具", "圆珠笔", 2,
"文具", "钢笔", 10,
"文具", "水彩笔",12,

"球类", "篮球", 66,
"球类", "足球", 120,
"球类", "乒乓球", 3,
"球类", "羽毛球", 15,
};
可以改为如下：
#define TYPE_LEN 20/*类型长度*/
#define NAME_LEN 20/*名字长度*/
struct commodity
{
unsigned char strType[TYPE_LEN]; /*数组,strType不能是char型，应该用unsigned char型，原因与汉字编码有关，你可以查相关资料*/
unsigned char strName[NAME_LEN]; /*数组,strName不能是char型，应该用unsigned char型，原因与汉字