文件操作

[kyxyljb]

#include<stdio.h>
#include<stdlib.h>
#include<errno.h>
#include<string.h>
#include<time.h>
#include<error.h>
#include<signal.h>
#include<sys/time.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/socket.h>
#include<sys/wait.h>
#include<unistd.h>
#include<netdb.h>

typedef struct Depost
{
	char szSerial[10 + 1];			/* 流水号 */
	char szPhone[13 + 1];			/* 手机号码 */
	char szMoney[16 + 1];		/* 金额 */
	char szTime[14 + 1];		/* 交易时间 */
	char szTradeFlag[1 + 1];		/* 交易状态 */
}strDepost;


char* GetItemValue(int nIndex, char *src, char *split)
{
 		int n, i ;
    char *pIndex ; 
    char *p ;
    char tempbuff[64];
        
    if (nIndex < 0 || src == NULL)
        return NULL;

    for (pIndex = src, i = 0; i < nIndex; i ++)
    {   
        pIndex =  strstr(pIndex, split);
        if (pIndex == NULL) return NULL;
        pIndex += strlen(split);
    }           
         
    memset(tempbuff, 0, sizeof(tempbuff));
                    
    p =  pIndex;
    n = 0;
    while (*p && memcmp(p, split, strlen(split)) != 0 && (n < 63))
        tempbuff[n++] = *p ++;
    tempbuff[n] = '\0';
    
    return tempbuff;
}


int main(int argc,char** argv)
{
	char szCrmFile[256];
	strDepost strCrmDepost_s;
	char szCrmLine[256];
	FILE *pCrmFile;	
	char cmd[256];

	
	memset(szCrmFile, 0, sizeof(szCrmFile));
	sprintf(szCrmFile, "%s/crm1", getenv("FILESERVERDIR"));
	
	/* 开始对帐，以CRM文件为参照物 */
	if ((pCrmFile = fopen(szCrmFile,"r")) == NULL)
	{
		printf("打开CRM明细对帐文件错误\n");
		return -1;
	}
	
	while(1)
	{
		memset(szCrmLine,0,sizeof(szCrmLine));	
		if (fgets(szCrmLine, sizeof(szCrmLine), pCrmFile) != NULL )
		{		
			printf("crmLine %s\n",szCrmLine);			
			memset(&strCrmDepost_s, 0, sizeof(strCrmDepost_s));

			printf("\nGetItemValue %s,",GetItemValue(0, szCrmLine, ","));
			strcpy(strCrmDepost_s.szSerial, GetItemValue(0, szCrmLine, ","));
			printf("strCrmDepost_s.szSerial %s\n",strCrmDepost_s.szSerial);

			strcpy(strCrmDepost_s.szPhone,  GetItemValue(1, szCrmLine, ","));
			strcpy(strCrmDepost_s.szMoney,  GetItemValue(2, szCrmLine, ","));
			strcpy(strCrmDepost_s.szTime,  GetItemValue(3, szCrmLine, ","));
			strcpy(strCrmDepost_s.szTradeFlag,  GetItemValue(4,szCrmLine , ","));

			printf("ok\n");
		}
		else 
		{
			break;
		}
	}	

	fclose(pCrmFile);
	return 0;
}

crm1文件内容：
11111111,0,0,0,0
22222222,0,0,0,0

执行结果：
crmLine 17 11111111,0,0,0,0
49 49 49 49 49 49 49 49 44 48 44 48 44 48 44 48 10 ~~
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GetItemValue 11111111,strCrmDepost_s.szSerial 1111lj@49 49 49 49 108 106 1 64 1 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0
crmLine 17 22222222,0,0,0,0
50 50 50 50 50 50 50 50 44 48 44 48 44 48 44 48 10 ~~
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GetItemValue 22222222,strCrmDepost_s.szSerial 22222222
50 50 50 50 50 50 50 50 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0

为什么执行结果出错，红色标记部分？是因为tempbuff用的是本地临时变量的原因，在访问该返回地址的内容已被修改？能深入的解释一下

[晚安_好梦]

while(1)
{
memset(&strCrmDepost_s, 0, sizeof(strDepost)); memset(szCrmLine,0,sizeof(szCrmLine));

新增那么一行试试

[晚安_好梦]

while(1)
{
memset(&strCrmDepost_s, 0, sizeof(strDepost)); memset(szCrmLine,0,sizeof(szCrmLine));

新增那么一行试试

[赵4老师]

sscanf(szCrmLine,"%[^,],%[^,],%[^,],%[^,],%[^,]",
strCrmDepost_s.szSerial,
strCrmDepost_s.szPhone,
strCrmDepost_s.szMoney,
strCrmDepost_s.szTime,
strCrmDepost_s.szTradeFlag
);