control statements

I. Other PROCESS Control statementsRelatively simple, but it is important to note that they have their own scope of control, leaving the range is useless. is two keywords, plus a semicolon, is a statement.Break;continue;Break means to jump out, it

First, the Process Control statement (if statement) in JSFormat:if ( condition 1) {if condition 1 is established, execute the code here}Else{if the condition is not true , execute the code here}format :if ( condition 1) {if condition 1 is

One, branch control statements1. If: Fi conditionif condition; ThenActionFi2. If: else.. Fi conditionIf Condition;thenActionElseActionFi3. If: else if: else.. Fi conditionIf Condition;thenActionelse if Condition;thenActionElseActionFiNote: If and

Note: In Python, non-0 values indicate that True;none and 0 represent False.If statementIf...else statementsIf...elif...else statementsNested IF statementsYou can add an if ... else statement to another if ... else statement, which is called nested.

First, conditional control statements1. IfScripttype= "Text/javascript"> varNum= 1 if(Num== 3) {alert ("1"); } Else if(Num== 2) {alert ("2"); } Else if(Num== 1) {alert ("1"); } Else{alert ("0"); }Script>2. SwitchGetting Started

Branch statement (if statement, switch statement); Loop statement (For,while,do...while); Jump Statement (Break,continue,return); Branch statement (if statement, switch statement)If Judgment statement format:Format 1: Suitable for use

First, what is a cycle?Executes a code snippet repeatedly when the condition is metWhat are the conditions that make up a cycle?1) Conditions for circular exit2) loop body (repeated code snippet)3) Let the loop normal exit condition meet the

Conditional statementsifare all old friends, direct code example, simple and easy to get started:>>> lang = "python" >>> if lang = = "C": ... Print "C language" ... elif lang = = "Java": ... Print "Java language" ... else: Print "Python

1.Python Indentation RulesPreferably four spaces, followed by tab, no spaces tab mixed2.Python Flow Control Statement code block principle: represents the beginning of a code blockIf you hit the code in a Python interactive environment, also pay

1. Three types of control structuresSequential selection Loops2.math.random () is a pseudo-random double value that is randomly selected for a system that is greater than or equal to 0.0 and less than 1.0The result value of an expression in 3.switch

/* * Process Control statements in Java: * Three major categories: * Sequential structure statements: the simplest * The code is executed from the main () method, sequentially, from the top down * Select Structure Statement * If statement * Switch

PHP Control statements 1, if statement An If statement is an important feature in most languages, and it executes the program segment according to the conditions. PHP's If statement is similar to C: if (expr) Statement As discussed in an expression,

the If-else statement in//sqlIF (condition)BEGINStatement 1Statement 2... ...ENDELSEBEGINStatement 1Statement 2... ...ENDExample:IF (@score > 85)PRINT ' Exam level: ' + ' excellent 'ELSE IF (@score > 70)PRINT ' Exam level: ' + ' good 'ELSE IF

1 goto statementIF 12>9GOTO Print1ELSEGOTO Print2Print1:print ' performed the process 1 '--goto theendPrint2:print ' performed the process 2 'GOTO theendPrint3:print ' performed the process 3 'Theend:print ' Process end ';2 case and then ELSE End

Sql> Create or Replace procedureSp_pro5 (id_invarchar2) is 2V_sal mytest.salary%type; 3 begin 4 SelectSalary intoV_sal fromMyTestwhereId=id_in; 5 ifV_sal the Then 6 UpdateMyTestSetSalary=1.1*V_salwhereId=id_in; 7 End if; 8 End; 9 /

14.6.5.1 Case Syntax14.6.5.2 IF Syntax14.6.5.3 Iterate Syntax14.6.5.4 LEAVE Syntax14.6.5.5 LOOP Syntax14.6.5.6 REPEAT Syntax14.6.5.7 RETURN Syntax14.6.5.8 while SyntaxCase USAGE:Two ways to use:IF usage:Looping statements: Iterate SyntaxIterate is

variable Scopeinternal variables enjoy higher precedence within their scope when executed to end. variable, the internal variable disappears, and the variable is no longer visible at this time outside its scope, and should be storedthe declared

Theoretical part:1, in a simple script, each of the statements executed sequentially, so as to achieve automated management,Sequential single execution is too mechanized, not "smart" enough to achieve more flexible system tasks.Example: Bulk Install

Learning Summary1, the circulation of the grammar and other languages are not bad, probably most of the language on the basis of the development of C, so much the same is not strange.2, in the judgment expression, only 0 of C language is considered

An operator1. Basic ConceptsExpression: A phrase made up of constants/variables and operatorsOperands: Constants and variables in an expression become operandsMonocular operator: becomes a single-mesh operator with only one operandMulti-mesh