【字符串操作之】连接字符串

1、+ 运算符

var str1:String = "green";
var str2:String = "ish";
var str3:String = str1 + str2; 
trace(str3);
//greenish

2、+= 运算符

var str:String = "green";
str += "ish"; 
trace(str);
//greenish

3、concat方法

var str1:String = "Bonjour";
var str2:String = "from";
var str3:String = "Paris";
var str4:String = str1.concat(" ", str2, " ", str3);
trace(str4);
// Bonjour from Paris