use of if

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

Today, I saw a very popular post on javaeye. The question is (interview): whether to use exception (exception) or if to judge http://www.javaeye.com/topic/745640. The content is probably: When the parameter is invalid, is it true that if else

int index; if (index = = 0) { NSLog(@ "11111"); }Else if (index = = 1) { NSLog(@ "2222222"); }Else if (index = =3) { NSLog(@ "3333333"); }......Do we see this kind of code that looks like a little eye ache? If it is you, how will you

Tag: The code implementation has one fill highlight than the multi-label roundSometimes the programming for a long time, if you stop to think about it, even some of the most basic knowledge points, it may also make their own circle. In fact, at the

Question: Evaluate the final test scores of Students Score> = 90: 90> score> = 80: B 80> score> = 70: c 70> score> = 60: d Solution 1: If else if is not understood, and this error is easy to make. If (score> = 90) // condition 1 {console.

This article mainly introduces how to use if Shell script to program if statements. for details, refer to the if statement format. If condition Then Command Else Command Fi, don't forget the end. If statements forget the final fi Test. sh: line 14:

All except Ie can be recognized all IE identifiable only IE6 can recognize versions earlier than IE6 and IE6 are recognizable IE6 and IE6 and later versions can be recognized only IE7 is recognizable versions earlier than IE7 and IE7 are

Today, my colleague asked me if I could python, I hesitated: No. In fact, I used to learn the language, I used it to write a few tools, but now my impression of the language is only the special indentation format. How can you think of a language? I

I. Explanation of DD commandsDD: Use a block of the specified size to copy an object and perform the specified conversion at the same time. Note: If the following column ends with a specified number, multiply it by the corresponding number: B = 512;

ID Realname SEX1 10082 Pine XX2 10084 Lam xx 13 10087 West XX4 10100 hu xx5 10102 Dragon xx 1Usage ============Select U.id,u.realname,(Case U.sexWhen 1 Then ' Male 'When 2 ThenFemaleElse ' empty 'END) genderfrom Users u;====In the second case, if