浏览string.GetHashCode使用Reflector的源代码会显示以下内容(对于mscorlib.dll版本4.0):
public override unsafe int GetHashCode()
{
fixed (char* str = ((char*) this))
{
char* chPtr = str;
int num = 0x15051505;
int num2 = num;
int* numPtr = (int*) chPtr;
for (int i = this.Length; i > 0; i -= 4)
{
num = (((num << 5) + num) + (num >> 0x1b)) ^ numPtr[0];
if (i <= 2)
{
break;
}
num2 = (((num2 << 5) + num2) + (num2 >> 0x1b)) ^ numPtr[1]; …Run Code Online (Sandbox Code Playgroud)