Switch-case retrun break, switch-caseretrun
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If statements process two branches, the if-else-if structure must be used when processing multiple branches. However, if there are many branches, the more nested if statement layers, the program is not
$a=5;switch($a){ case 6: echo "\$a is 6"; case 5: echo "\$a is 5"; case 4: echo "\$a is 4";}
As in the above example, my understanding is that each time $ A is compared to the value of the case, the output statement is the same, and the
The switch in Swift has been greatly improved in comparison with this part of the objective-c. This is a very interesting thing, because it is still not added to the objective-c, or the fact that the objective-c is a superset of C is not broken.
Switch case is a qualified data in js, which is much simpler than if else. Next I will introduce my understanding of js switch case.
In the if Condition Statement, only one logical condition can exist. if multiple conditions exist, you can use
Switch...case statements are often used in the C language, let me show you a detailed question to be aware of when using this statement. Words not much to say, directly cite examples:Example 1:Switch (fruit){Case 1:printf ("Apple"); BreakCase
Problem:Break plays a role in the loop flow control of the for loop, while loop, and stops execution of the statement after the break, jumps out of the loop, and jumps out of the loop control body;In the switch condition selection, there is no
Switch syntax The code is as follows:Copy code Switch (expression){Case constant expression 1: Statement 1;....Case constant expression 2: Statement 2;Default: statement;} Default is to execute it if there is no matching case. default is not
In practice, the string series in c ++ -- use string in the switch statement (c ++ does C #, and break in the switch is still very powerful)
How many times have you written this as a C ++ programmer out of habit or helplessness:
if (!strcmp(pszValue,
4.2.2 The switch statement that expresses the side-by-side condition selection: If ... If...... If......In the real world, there is a special kind of conditional choice:If it is sunny tomorrow, I will wear a T-shirt;If it is cloudy tomorrow, I will
Asp tutorial. net switch statement usage (C, C #)A switch statement is a control statement that processes multiple choices and enumerations by passing a case statement to the body.Int caseSwitch = 1;Switch (caseSwitch){Case 1:Console. WriteLine
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