C中的char []操作(char[] manipulation in C)

编程入门行业动态更新时间:2024-10-26 02:29:56

假设我定义了以下内容：

unsigned char temp[2][13];

什么是默认值将分配给此char[] ？它就像{'', '', '', ... , ''} ？

在我的程序（计算器）中，我有operand[2][13] （其中第一个操作数是operand[0] ，第二个操作数是operand[1] ），我有操作和Result[15] ，它们都是unsigned char 。 Fisrt，用户将进入Operand1和Operand2（一次一个字符），它将存储在operand[2][13]然后程序将结果存储为Result[15]字符。现在我想要的是，在下一次迭代中，我想清除operand[2][13] ，操作和Result[15]以便用户可以输入下一个操作数，程序执行下一个操作并将结果保存在Result[15] 。

我该如何清除这些数组？

Suppose I define the following:

unsigned char temp[2][13];

What is the default values will be assign to this char[]? Is it like {'', '', '', ... , ''}?

In my program (The calculator), I have operand[2][13] (where first operand is operand[0] and second operand is operand[1]) and I have Operation and Result[15] and they are all unsigned char. Fisrt, the user will enter Operand1 and Operand2 (A char at a time) and it will be stores in operand[2][13] then the program will store the result as chars in Result[15]. Now what I want is, at next iteration, I want to clear operand[2][13], operation and Result[15] so that the user can enter next operands and the program executes next operation and saves the result in Result[15].

How can I clear these arrays?