0xC0000005:读取位置 0xcccccccc 时发生访问冲突。
printf 抛出此异常。
我不知道为什么会发生这种情况...
这些字符串变量中有值。我使用 printf 错误吗?
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string header;
string body;
string key;
if (!contactList.isEmpty()) {
cout << "Enter contact's name: ";
getline(cin, key);
Contact * tempContact = contactList.get(key);
if (tempContact != NULL) {
string name = tempContact->getName();
string number = tempContact->getNumber();
string email = tempContact->getEmail();
string address = tempContact->getAddress();
//I've just put this here just to test if the variables are being initialized
cout << name + " " + number + " " + email + " " + address << endl;
switch (type) {
case 1:
printf("%-15s %-10s %-15s %-15s\n", "Name", "Number", "Email", "Address");
printf("%-15s %-10s %-15s %-15s\n", name, number, email, address);
break;
case 2:
printf("%-15s %-10s\n", "Name", "Number");
printf("%-15s %-10s\n", name, number);
break;
case 3:
printf("%-15s %-15s\n", "Name", "Email");
printf("%-15s %-15s\n", name, email);
break;
case 4:
printf("%-15s %-15s\n", "Name", "Address");
printf("%-15s %-15s\n", name, address);
break;
default:
printf("%-15s %-10s %-15s %-15s\n", "Name", "Number", "Email", "Address");
printf("%-15s %-10s %-15s %-15s\n", name, number, email, address);
}
} else {
cout << "\"" + key + "\" not found.\n" << endl;
wait();
}
} else {
cout << "Contact list is empty.\n" << endl;
wait();
}
第一个 printf 打印正常,但第二个 printf 会抛出异常,似乎无论我如何传递字符串值。