What Are HTML Background Codes?

The so-called webpage code refers to some special "languages" that need to be used in the process of creating webpages. Designers organize these "languages" to create webpages, and then the browsers "translate" the code Is the effect we finally see.

Web code

The so-called webpage code refers to some special "languages" that need to be used in the process of creating webpages. Designers organize these "languages" to create webpages, and then the browsers "translate" the code Is what we finally saw

The following mainly describes

The so-called code optimization refers to the equivalent transformation of the program code (meaning that the running result of the program is not changed). The program code can be intermediate code (such as quaternary code) or object code. The equivalent meaning is to make the transformed code run the same result as before the transformed code. The meaning of optimization is that the final generated target code is short (shorter running time and smaller footprint), and space-time efficiency is optimized. In principle, optimization can be performed at various stages of compilation, but the main type is optimization of intermediate code. This type of optimization does not depend on the specific computer.

The optimizations that can be performed during compilation can be divided into stages: optimizations can be performed at different stages of compilation, and can be divided into intermediate code level and target code level optimization. It can be divided according to the scope of the program involved in the optimization: the same stage is divided into local optimization, loop optimization and global optimization. The foundation required for optimization is data flow analysis and control flow analysis of the code. Such as dividing the DAG, finding loops, analyzing the setting and reference points of variables, and so on. The most commonly used code optimization techniques are deleting redundant operations, loop-invariant code extraction, weakening of strength, changing loop control conditions, combining known quantities with replication propagation, and deleting useless assignments.