getchar输入字符串

getchar函数用于输入字符，而不是字符串。通过使用getchar函数，可以逐个读取字符并将其存储在变量中。在一个while循环中，可以使用条件语句来判断字符是否等于换行符\n，从而统计字符的个数。 输入的字符串不可以包含空格、制表符或者换行符，否则会影响输入的结果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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