該樓層疑似違規(guī)已被系統(tǒng)折疊?隱藏此樓查看此樓

上面代碼有誤，本來switch語句是接收int型的，有死循環(huán)；有人建議改成接收字符，上面沒改完全，現(xiàn)在改完全了，但是會重復(fù)輸出，輸出如下

*** ACME checkbook-balancing program ***

Commands: a=clear, b=credit, c=debit, d=balance, e=exit

Enter command: b

Enter amount of credit: 10000

Enter command: Commands: a=clear, b=credit, c=debit, d=balance, e=exit

Enter command: d

Current balance: $10000.00

Enter command: Commands: a=clear, b=credit, c=debit, d=balance, e=exit

Enter command: 0

Commands: a=clear, b=credit, c=debit, d=balance, e=exit

Enter command: Commands: a=clear, b=credit, c=debit, d=balance, e=exit

Enter command:

代碼如下：

/* Balances a checkbook */

#include

int main(void)

{

char cmd;

float balance = 0.0f, credit, debit;

printf("*** ACME checkbook-balancing program ***\n");

printf("Commands: a=clear, b=credit, c=debit, ");

printf("d=balance, e=exit\n\n");

for (;;) {

printf("Enter command: ");

cmd = getchar();

switch (cmd) {

case 'a':

balance = 0.0f;

break;

case 'b':

printf("Enter amount of credit: ");

scanf("%f", &credit);

balance += credit;

break;

case 'c':

printf("Enter amount of debit: ");

scanf("%f", &debit);

balance -= debit;

break;

case 'd':

printf("Current balance: $%.2Lf\n",balance);

break;

case 'e':

return 0;

default:

printf("Commands: a=clear, b=credit, c=debit, ");

printf("d=balance, e=exit\n\n");

break;

}

}

}

總結(jié)

以上是生活随笔為你收集整理的c语言死循环中输入字符,如下代码，如果输入字符，为什么会造成死循环？的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。