learning and teaching (25)

https://wodewangzhishime.blogspot.com/2021/10/httpswodewangzhishime_61.html

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Ref: https://wodewangzhishime.blogspot.com/2021/09/httpswodewangzhishime_83.html

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John: It happen in the year of 2015.

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While (the telecom is running)

{

if (dail = Mr. Luan)

{

if (person being called= John)

{

bind (physical address, John );

Bind (physical address, Kelvin), <--- Kelvin hack the telecom and add an extra code here. 

}

}

}

.

Kelvin: I have a software which is so funny. When 2 guys are talking on the telephone, I can join it.

Mr. Luan (a police) : Oh! It's so funny.  Can I play around with this software ?

Kelvin : For sure. Tomorrow,  you give a phone-call to John. You explain to John the result of investigation. 

Mr. Luan : This call is between me and John. 

Kelvin : Yes,. While you are explaining the result, I press a button  and then I will join in remotely.

Mr. Luan: It become 3 persons. 

Kelvin : Yes,.