关于c ++：File.cpp：148：错误：在’。’之前预期的primary-expression令牌不同符号

File.cpp:148: error: expected primary-expression before ‘.’ token DIFFERENT SYMBOL

我正在努力完成这段代码。

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#include (sorry but it won't show up the #include such as stdio.h AND OTHERS) But this is not the problem.

using namespace std;

struct CustomerFile {
int arrivalTime;

string driverfName,
driverlName,
typeOfDriver,
driverLicNumber,
vehicleMake,
vehicleModel,
Lot_taken,
vehicleRegNumber,
attendantName,
ParkingArea,
Comments,
checkOutDateTime,
checkInDateTime;
};

int arrivalTime;

string driverfName,

driverlName,
typeOfDriver,
driverLicNumber,
vehicleMake,
vehicleModel,
Lot_taken,
vehicleRegNumber,
attendantName,
ParkingArea,
Comments,
checkOutDateTime,
checkInDateTime;

int main(int argc, char * * argv) {

FILE * cfPtr;

if ((cfPtr = fopen("CustomerFile.dat","rb+")) == NULL) {
printf("file could not be opened");
} else {
printf("
File is Written to");
printf("
File is open");

printf("

Enter Vehicle Registration Number:");
scanf("%s", & CustomerFile.vehicleRegNumber);

while (CustomerFile.vehicleRegNumber != 0) /*#IF THE USER does not enter 0 the loops should begin, but there is a problem here*/
{

printf("
First Name:");
fscanf("%s", CustomerFile.driverfName); /*here is the problem, I think is had something to do with the struct name*/
printf("
Last Name: ");
printf("
Type of Driver: ");
printf("
Driver's License Number: ");
printf("
Vehicle Make: ");
printf("
Vehicle Model: ");
printf("
Comments ");
printf("
Parking SpaceTaken");

printf("

enter firstname, lastname");
fscanf(stdin,"%s%s%s%s%s%s%s%s1f", CustomerFile.driverfName I think this has something to do with the statement * /
CustomerFile.driverlName / * okay here * /
CustomerFile.typeOfDriver / * okay here * /
CustomerFile.driverLicNumber / * okay here * /
CustomerFile.vehicleMake / * okay here * /
CustomerFile.vehicleModel / * okay here * /
CustomerFile.Comments / * okay here * /
&CustomerFile.Lot_taken); / * okay here * /

fwrite( sizeof(struct CustomerFile ), 1, cfPtr);

}
fclose( cfPtr);
}

return 0;

}

好吧，问题是它总是出错；*

File.cpp:144: error: expected primary-expression before ‘.’ token

File.cpp:148: error: expected primary-expression before ‘.’ token

File.cpp:162: error: expected primary-expression before ‘.’ token

File.cpp:172: error: invalid conversion from ‘unsigned int’ to ‘const void*’

File.cpp:172: error: invalid conversion from ‘FILE*’ to ‘size_t’
/usr/include/stdio.h:708: error: too few arguments to function ‘size_t fwrite(const void*, size_t, size_t, FILE*)’
File.cpp:172: error: at this point in file

我相信或读到它有一个事实，即C++编译器不能与C99一起工作。如果是这样，那么C++中如何使用Struts？我知道你使用了一个结构，比如customerfile.driverlname，但是编译器一直拒绝使用它。另外，while循环也有问题。我熟悉C和C++，我们同时教了C和C++，代码是用C++编写的，但是教科书给出了C代码，这些代码不能在C++编译器中运行。

CustomerFile是一个类，所以当您试图访问它的数据成员时，它将不会工作，就像它是一个实例一样。要创建实例，请执行以下操作：

1	CustomerFile file;

用file.替换Customer.的所有实例，并解决错误。

您定义了一个数据类型CustomerFile。对于使用已定义的结构CustomerFile，您已经创建了一个对象并使用它。例如：

1 2	CustomerFile customer; customer.vehicleModel ="ABC";

vehicleRegNumber的类型是string而不是integer与0的类型比较如下

1	while (customer.vehicleRegNumber !="0" )

在变量名之间加上,。

1	fscanf( stdin,"%s%s%s%s%s%s%s%s1f", customer.driverfName, customer.driverlName ,

fscanf()函数是一个c函数，它不知道std::string函数(或类)。所以你用了这样的临时字符串

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char temp[100];
printf("
First Name:");
fscanf(stdin,"%99s", temp );
customer.driverfName = temp;