1 string t = "I love you.";
2 string tt = t;
3 tt = "I do love you.";
4 Console.WriteLine(t);

结果是：I love you.

string[] template = { "I love you", " China." };
string[] tmp = template;
tmp[0] = "I do love you";
Console.WriteLine(template[0]);

结果是：I do love you.

可用如下办法解决

 

 原理阐释：待续