为什么得不到正确的结果

[yyz2000]

我的yyz1.ini文件内容如下
[接车]
正常过车=3
————————————————————————
int j;
char buffer[20];
GetPrivateProfileString("接车",str,"正常过车",buffer,10,"d:\\xuexi\\yyz1.ini");
j=atoi(buffer);
__________________________________________
为什么j返回的值不是3

[mlin2000]

BOOL WritePrivateProfileString(
LPCTSTR lpAppName, // section name
LPCTSTR lpKeyName, // key name
LPCTSTR lpString, // string to add
LPCTSTR lpFileName // initialization file
);
Parameters
lpAppName
[in] Pointer to a null-terminated string containing the name of the section to which the string will be copied. If the section does not exist, it is created. The name of the section is case-independent; the string can be any combination of uppercase and lowercase letters.
lpKeyName
[in] Pointer to the null-terminated string containing the name of the key to be associated with a string. If the key does not exist in the specified section, it is created. If this parameter is NULL, the entire section, including all entries within the section, is deleted.
lpString
[in] Pointer to a null-terminated string to be written to the file. If this parameter is NULL, the key pointed to by the lpKeyName parameter is deleted.
Windows 95: The system does not support the use of the TAB (\t) character as part of this parameter.

lpFileName
[in] Pointer to a null-terminated string that specifies the name of the initialization file.

[mlin2000]

LoadStdProfileSettings(); // Load standard INI file options (including MRU)

[mlin2000]

DWORD GetPrivateProfileString(
LPCTSTR lpAppName, // section name
LPCTSTR lpKeyName, // key name
LPCTSTR lpDefault, // default string
LPTSTR lpReturnedString, // destination buffer
DWORD nSize, // size of destination buffer
LPCTSTR lpFileName // initialization file name
);
Parameters
lpAppName
[in] Pointer to a null-terminated string that specifies the name of the section containing the key name. If this parameter is NULL, the GetPrivateProfileString function copies all section names in the file to the supplied buffer.
lpKeyName
[in] Pointer to the null-terminated string specifying the name of the key whose associated string is to be retrieved. If this parameter is NULL, all key names in the section specified by the lpAppName parameter are copied to the buffer specified by the lpReturnedString parameter.
lpDefault
[in] Pointer to a null-terminated default string. If the lpKeyName key cannot be found in the initialization file, GetPrivateProfileString copies the default string to the lpReturnedString buffer. This parameter cannot be NULL.
Avoid specifying a default string with trailing blank characters. The function inserts a null character in the lpReturnedString buffer to strip any trailing blanks.

Windows 95: Although lpDefault is declared as a constant parameter, the system strips any trailing blanks by inserting a null character into the lpDefault string before copying it to the lpReturnedString buffer.

Windows NT/2000: The system does not modify the lpDefault string. This means that if the default string contains trailing blanks, the lpReturnedString and lpDefault strings will not match when compared using the lstrcmp function.

lpReturnedString
[out] Pointer to the buffer that receives the retrieved string.
nSize
[in] Specifies the size, in TCHARs, of the buffer pointed to by the lpReturnedString parameter.
lpFileName
[in] Pointer to a null-terminated string that specifies the name of the initialization file. If this parameter does not contain a full path to the file, the system searches for the file in the Windows directory.

[yyz2000]

另外我怎样将整形数据转变成字符型数据在写回原来的位置

[squall220]

老大用法错了：
GetPrivateProfileString("接车","正常过"," ",buf,,"d:\\xuexi\\yyz1.ini");
j=atoi(buf)
另外最好用GetPrivateProfileInt，省了一部atoi啊！

[squall220]

char str[10];
int i=20;
itoa(i,str,10);
WritePrivateProfileString("接车","正常过车",str,"d:\\xuexi\\yyz1.ini");
上面的语句写错了：

GetPrivateProfileString("接车","正常过车"," ",buf,"d:\\xuexi\\yyz1.ini");