【字符串操作之】大小写转换→→toLocaleLowerCase、toLocaleUpperCase

 大小写之间的转换，很简单

var str:String="abcdefg";
trace(str.toLocaleUpperCase());
//ABCDEFG
var str1:String="ABCDEFG";
trace(str.toLocaleLowerCase());
//abcdefg