LaTeX Test

if you can see a equation

$e^x = \sum_{n=0}^\infty \frac{x^n}{n!} = \lim_{n\rightarrow\infty} (1+\frac{x}{n})^n$

#include <stdio.h>
int
main(int argc, char *argv[])
{
    printf("hello world!\n");
    return 0;
}

program hello;
begin
    writeln('hello world');
end.

#!/usr/bin/bash

for $i in (100, 100)
    do 
        ping 11.1.1.$i
    done

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Hu Zhenyu's Blog