下面代码中的bankaccount *account是什么含义及功能 #include <stdio.h> typedef struct { double balance; } bankaccount; //开户 void openaccount(bankaccount *account) { account->balance = 0; printf("开户成功"); } void deposit(bankaccount *account, double amount) { account->balance += amount; printf("存款 %.2f 成功", amount); } void withdraw(bankaccount *account, double amount) { if (account->balance >= amount) { account->balance -= amount; printf("取款 %.2f 成功", amount); } else { printf("取款 %.2f，余额不足失败", amount); } } d
在这段代码中，`bankaccount *account` 是一个指向 `bankaccount` 结构体类型的指针。 其主要功能是通过指针来操作结构体变量，这样可以在函数内部修改传递进来的结构体对象的成员值，而不是仅仅操作结构体的副本。 例如，在 `openaccount` 函数中，通过 `account->balance = 0;` 直接修改了传入的银行账户结构体对象的余额。如果不是使用指针传递，而是值传递，那么在函数内部对余额的修改不会反映到函数外部实际的结构体对象上。 [2024-08-08 15:12:48 | AI写代码神器 | 124点数解答]
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