XCEngine/docs/api/containers/string/clear.md

String::Clear

void Clear();

清空字符串内容，将长度设为 0，但不释放已分配的内存。

参数： 无

返回： 无

复杂度： O(1)

示例：

#include "XCEngine/Core/Containers/String.h"
#include <iostream>

int main() {
    XCEngine::Containers::String s("Hello World");
    std::cout << "Before clear - Length: " << s.Length()
              << ", Capacity: " << s.Capacity() << std::endl;
    // 输出: Before clear - Length: 11, Capacity: 12

    s.Clear();
    std::cout << "After clear - Length: " << s.Length()
              << ", Capacity: " << s.Capacity() << std::endl;
    // 输出: After clear - Length: 0, Capacity: 12
    std::cout << "Empty: " << s.Empty() << std::endl;  // 输出: Empty: 1

    return 0;
}

相关文档

• String 总览 - 返回类总览
• Reserve / Resize - 内存管理