Trying to do Exercise 1-19 of K&R 2nd ed., e.g. writing a function to reverse a string. I thought I managed, but the print output looks strange :-) If I use Trying to do Exercise 1-19 of K&R 2nd ed., e.g.
阅读背景：
在C中反转数组的功能（K＆R 2nd ed。）
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