What does Foo mean?

No matter Java, C ++, or PHP, we can see the foo = bar example every time. These two words are disgusting. Foo cannot find the dictionary, and bar interpretation cannot be linked to programming, it is hard to figure out what the mysterious foo is.

I can't understand the meaning of words, and I always feel confused when I learn it. So I checked it and finally opened the abnormal relationship between the two things. Let's talk about it for beginners who are all in a bad mood.

Based on a large number of network materials, I clearly told you that Foo and bar are foreigners, Zhang San, Li Si, and Wang Erma Zi. They are just a naming method. Similar to I, j, and K in C.

That is to say, foo = bar and the variable Zhang San = Li Si's nephew have an intent. Therefore, the children's shoes should not look at Foo again.

Asking foo is just like asking who James is. I think foreigners will also want to know Who James is and how he is so famous that he can always see this name, but he was not found in history.