作者:因情语写
链接:https://www.proprogrammar.com/article/466
声明:请尊重原作者的劳动,如需转载请注明出处
如何通过运行程序输出程序源码?
下面是JAVA实现
public class Quine
{
public static void main(String[] args)
{
char q = 34; // Quotation mark character
String[] l = { // Array of source code
"public class Quine",
"{",
" public static void main(String[] args)",
" {",
" char q = 34; // Quotation mark character",
" String[] l = { // Array of source code",
" ",
" };",
" for(int i = 0; i < 6; i++) // Print opening code",
" System.out.println(l[i]);",
" for(int i = 0; i < l.length; i++) // Print string array",
" System.out.println(l[6] + q + l[i] + q + ',');",
" for(int i = 7; i < l.length; i++) // Print this code",
" System.out.println(l[i]);",
" }",
"}",
};
for(int i = 0; i < 6; i++) // Print opening code
System.out.println(l[i]);
for(int i = 0; i < l.length; i++) // Print string array
System.out.println(l[6] + q + l[i] + q + ',');
for(int i = 7; i < l.length; i++) // Print this code
System.out.println(l[i]);
}
}
运行结果
主要代码在String[] l,通过他输出源码,这个数组中的String[] l的内容是一行空格,这也是他和真正源码的区别,也是一个比较关键的地方。
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