Reposted from Sina Blog:
1: Why not use the GOTO statement?
Source (from Wikipedia ):
Goto is a statement that can be found in many computer programming languages. It is an English word.GoAndTo. When executing this statement, it transfers the
Once upon a time, how powerful goto was to let the cool man Bloom their superb technologies. Once upon a time, goto became the first of all evil, the goto example only appears in the textbook. There are too many reasons not to use goto, but
Whether goto statements should be used
A goto statement is also known as an unconditional transfer statement , which is usually used in conjunction with a conditional statement to change the flow of the program, allowing the program to go
The goto statement is an unconditional transfer statement that is used in the following format:Goto statement label;Where the label is a valid identifier, with a ":" (colon) that appears somewhere inside the function, after the goto statement is
For goto statements, it is no longer recommended in C/C ++, and there is no goto in Java. Why does the GOTO statement be re-used in C?
First, let's take a look at the usage of the GOTO statement in C:1) The basic function is to execute the
The GOTO statement is a reserved word in Java and is not implemented. However, in other languages (C), Goto is a valid keyword.Although the break and continue supported in Java can implement the GOTO statement function, I personally summarize that
If for different situations, need to perform different established operations, if or according to the normal execution process, is unable to complete the task, this time, it is necessary to introduce the concept of process jump, using the process
This article reproduced: http://blog.chinaunix.net/uid-26715658-id-3254915.htmlBreak and Continue use the same range, both can be used for loops, and the break in It can also be used for switch. function also has certain similarity, break is
The GOTO keyword appears early in the programming language. In fact, Goto is the ancestor of the program control structure of assembly language: "If condition A,
Jump here, or jump there. " If you read the assembly code generated by almost any
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