Go Language introduction | Go Theme month

2009, “C Language in the Age of Cloud Computing”

Go language core features

1. Concurrent programming:

• It's much simpler in concurrent programmingCopy the code

• Golang's concurrent execution unit is a coroutine called a GoroutineCopy the code

2. Memory reclamation:

• Automatic recycling, no management requiredCopy the code

• Just new, no releaseCopy the code

3. Memory allocation:

• Start by allocating a large memory areaCopy the code

• Large memory is divided into blocks of various sizes and placed into different free listsCopy the code

• When the object allocates space, it retrieves the appropriately sized blocks from the listCopy the code

• When memory is reclaimed, unused memory is put back into an idle listCopy the code

• Free memory is consolidated according to a policy to reduce fragmentationCopy the code

4. compile

• Two compilersCopy the code

• Gccgo built on top of GCCCopy the code

• A set of compilers for 64-bit x 64 and 32-bit x 86 computers (6G and 8G)Copy the code

5. Network programming

• Multiple interfacesCopy the code

6. The function returns multiple values

• Allows functions to return multiple valuesCopy the code

7. Language interactivity

• Call libraries in other languagesCopy the code

• Can interact with C programsCopy the code

8. Exception handling

• The three keywords defer, panic and recoverCopy the code

• Defer is executed at the end of the function, first in, then outCopy the code

• Panic is used when the program has an unfixable error and will let defer finish executionCopy the code

• Recover fixes the error without terminating the program. Use defer+recover when you are not sure that the function will not failCopy the code

1. other

• Type inferenceCopy the code

• Interface interfaceCopy the code

• Defer mechanismCopy the code

• The concept of "package"Copy the code

• cross-compilationCopy the code

Go Language Advantages

• Easy learning curveCopy the code

• Fast compilation practice, high development and operation efficiencyCopy the code

• Parallel and asynchronous programmingCopy the code

• Free and efficient: combined ideas, non-intrusive interfacesCopy the code

• A powerful standard libraryCopy the code

• Easy deployment: binary file and Copy deploymentCopy the code

• The stability ofCopy the code