44 lines
1.0 KiB
Markdown
44 lines
1.0 KiB
Markdown
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# operator== / operator!=
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```cpp
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inline bool operator==(const String& lhs, const String& rhs);
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inline bool operator!=(const String& lhs, const String& rhs);
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```
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判断两个字符串是否相等或不相等。
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**operator==：** 比较两个字符串的长度是否相等，以及内容是否相同。
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**operator!=：** 相当于 `!(lhs == rhs)`。
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**参数：**
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- `lhs` - 左侧字符串
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- `rhs` - 右侧字符串
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**返回：** 布尔值，表示比较结果
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**复杂度：** O(n)，其中 n 为字符串长度
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**示例：**
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```cpp
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#include "XCEngine/Containers/String.h"
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#include <iostream>
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int main() {
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XCEngine::Containers::String s1("Hello");
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XCEngine::Containers::String s2("Hello");
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XCEngine::Containers::String s3("World");
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std::cout << std::boolalpha;
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std::cout << (s1 == s2) << std::endl; // 输出: true
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std::cout << (s1 == s3) << std::endl; // 输出: false
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std::cout << (s1 != s3) << std::endl; // 输出: true
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return 0;
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}
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```
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## 相关文档
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- [String 总览](string.md) - 返回类总览
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