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#include <set> std::set<std::string> setName; int main() { std::string strName = "世界英雄aa";//中文占两个字节,英文占一个字节 const char* name = strName.c_str(); int length = strName.length();//10 length = strlen(name);//10 return 0; }
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原文地址:http://www.cnblogs.com/zzyoucan/p/4842424.html