一个程序员成长历史


初中/高中

10 PRINT "HELLO WORLD"
20 END



大学一年级

program Hello(input, output);
begin
writeln('Hello world');
end.



大学四年级

(defun hello ()
(print (list 'HELLO 'WORLD)))



刚参加工作

#include 〈stdio.h〉
main (argc, argv)
int argc;
char **argv; {
printf ("Hello World!\n");
}



老手

#include 〈stream.h〉

const int MAXLEN = 80;

class outstring;

class outstring {

private:
int size;
char str[MAXLEN];

public:
outstring() { size=0; }
~outstring() { size=0; }
void print();
void assign(char *chrs);
};

void outstring::print() {
int in;
for (i=0; i〈size; i++)
cout 〈〈 str[i];
cout 〈〈 "\n";
}

void outstring::assign(char* chrs) {
int i;
for (i=0; chars[i]!='\0'; i++)
str[i] = chrs[i];
size=i;
}

main (int argc, char **argv) {
outstring string;
string.assign("Hello World!");
string.print();
}



老板

“小程，我需要一个能打印'Hello World!'的程序”
[em10][em10][em10][em10]