Just-in-Time-Compiler和解释器之间有什么区别？ [英] What are the differences between a Just-in-Time-Compiler and an Interpreter?

问题描述

Just-in-Time-Compiler和解释器之间有什么区别，.NET和JAVA JIT编译器之间有什么区别？

What are the differences between a Just-in-Time-Compiler and an Interpreter, and are there differences between the .NET and the JAVA JIT compiler?

推荐答案

即时编译

维基百科：

JIT基于运行时环境中的两个前面的想法：字节码编译和动态编译。

JIT builds upon two earlier ideas in run-time environments: bytecode compilation and dynamic compilation. It converts code at runtime prior to executing it natively, for example bytecode into native machine code.

解释器执行程序。

再次，从维基百科：

解释器可以是
或

An interpreter may be a program that either

1. 直接执行源代码的程序


2. 将源代码翻译成一些有效的中间表示
   （代码），并立即执行


3. 显式执行由编译器
   创建的存储的预编译代码，
   system

标准的Java和.NET发行版都有JIT编译，是标准不要求的。 .NET和C＃中的JIT编译器当然是不同的，因为中间字节码是不同的。原则是一样的。

Both the standard Java and .NET distributions have JIT compilation, but it is not required by the standards. The JIT compiler in .NET and C# are of course different because the intermediate bytecode is different. The principle is the same though.

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