类似于下面的转换代码:String str = "1";
int i = Integer.parseInt(str);
int a = 'A';
a = a + i;
char c = (char)a;
System.out.println(c);
int i = Integer.parseInt(str);
int a = 'A';
a = a + i;
char c = (char)a;
System.out.println(c);
用ASCII码对数字和英文字母互相转换。很简单的