Highlight Test

This is a highlight test.

Normal block

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alert('Hello World!');
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print 'helloworld'

Highlight block

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alert( 'Hello, world!' );
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print 'helloworld'
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def foo
  puts 'foo'
end
def foo
  puts 'foo'
end
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z
def foo
  puts 'foo'
end
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#include <iostream>

using namespace std;

void foo(int arg1, int arg2)
{

}

int main()
{
  string str;
  foo(1, 2);
  cout << "Hello World" << endl;
  return 0;
}
# 使用单$作为行内数学公式分界符