如果我通过在不安全的代码块或方法中使用指针来操作托管的C#字符串(例如,反转其字符),那么不安全的实现是否会混淆或破坏.NET字符串池机制？

正在操作的建议字符串是在托管代码中创建的,并传递给不安全的方法进行操作.

此方案的示例：

static void Main(string[] args) {
    string s = "this is a test";
    UnsafeReverse(s);
    Console.WriteLine(s); // displays "tset a si siht"
    // assume more managed strings are created and used along with the affected s. 
}

static unsafe void UnsafeReverse(string str) {
    int len = str.Length;

    fixed (char* pStr = str) {
        char* p1 = pStr;
        char* p2 = pStr + len - 1;

        char tmp;
        while (p1 < p2) {
            tmp = *p1;
            *p1 = *p2;
            *p2 = tmp;
            ++p1; --p2;
        }
    }
}

解决方法:

当然.只需这样写它就可以看到损坏：

    static readonly string DontMessWithStrings = "this is a test";

    static void Main(string[] args) {
        string s = "this is a test";
        UnsafeReverse(s);
        Console.WriteLine(DontMessWithStrings);
    }

[Edit by OP] The result of displaying DontMessWithStrings is “tset a
si siht” even though that variable is never directly touched by the string manipulation code!