C++ 字符串比较：忽略大小写 - 算法题解

#include "iostream"\n#include "cctype"\nusing namespace std;\n\nint main() {\n string str1, str2;\n cin >> str1 >> str2;\n\n // 将两个字符串转换为小写字母形式\n for (int i = 0; i < str1.length(); i++) {\n str1[i] = tolower(str1[i]);\n }\n for (int i = 0; i < str2.length(); i++) {\n str2[i] = tolower(str2[i]);\n }\n\n // 比较两个字符串\n if (str1 < str2) {\n cout << "<" << endl;\n } else if (str1 > str2) {\n cout << ">" << endl;\n } else {\n cout << "=" << endl;\n }\n\n return 0;\n}