Foo bar what the hell?

I'm sure you're interested in foo and bar These two words must be very familiar , They are the most commonly used variable names in computer books . Different dictionary pairs foo The explanation of is quite different , One is from China " blessing " The pronunciation of words , It is also interpreted as a weapon during World War II .

In fact, will foo and bar It's a combination of foobar It should best reflect its original meaning , This one can American Army slang abbreviations dating back to World War II “FUBAR”, The original is “Fucked Up Beyond All Repair” or “Fucked Up Beyond All Recognition”, The main idea is that things have been done in a complete mess , Beyond recognition , So that it cannot be repaired And identify .

Foo and bar Can become the two most commonly used variable names in programming , Maybe it reflects the sense of humor of programmers .