StringBuilder ads = new StringBuilder("ancd");
ads.Append("efg");
Response.Write(ads); // 输出 ancdefg
string a = "aaa";
a += "sfd";
Response.Write(a); // 输出aaasfd
时间: 2024-11-04 15:48:15
StringBuilder ads = new StringBuilder("ancd");
ads.Append("efg");
Response.Write(ads); // 输出 ancdefg
string a = "aaa";
a += "sfd";
Response.Write(a); // 输出aaasfd