string字符串比较 c++

在给定的代码中，字符串的比较是通过使用关系操作符进行的。如果两个字符串s1和s2相等，它们的每个字符都相等，长度也相等。如果s1小于s2，那么s1的第一个不相等的字符的ASCLL码值小于s2的对应字符的ASCLL码值。如果s1大于s2，那么s1的第一个不相等的字符的ASCLL码值大于s2的对应字符的ASCLL码值。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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