Fgetchar
从文件中读一个字符
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
Don't whistle until you are out of the wood.
没有脱离险境，不要过早高兴。
Here is a cheque for 4,725,466.
这是一张4，725，466美元的支票。