条件判断(一)if-else注意冒号位置 elif 重点 1.条件判断可以任意组合 elif可以有0-任意多个else可有可无 条件判断可以嵌套2.空列表 空字符,空dict在bool来看都是false 不是空则是true Python基础知识(if-else) python基础知识点 1.判断1.1if判断语句基本结构 就是当满足一定条件时才会执行代码块语句,否则就不执...
Python之 If条件判断、While循环语句 条件判断else: 循环语句 循环语句允许我们执行一个语句或语句组多次,Python提供了for循环和while循环。注意:在Python中没有do...while循环。 For循环 Python提供一个range()函数,可以生成一个整数序列,比如range(5)生成的序列是从0开始小于5的整数。 While 循环 while循环,只要...
章节名:Exercise 30: Else And If 2012-03-14 19:08:23 A colon at the end of a line is how you tell Python you are going to create a new "block" of code, and then indenting 4 spaces tells Python what lines of code are in that block. 引自Exercise 30: Else And If...
Test.java 文件代码:public class Test { public static void main(String args[]){ int x = 10; if( x < 20 ){ System.out.print("这是 if 分享回复赞 python吧 君言不得意◎ 萌新发问:python中if-else语句用来形成二分支结构为什么是错的啊 分享1赞 魔兽地图编辑器吧 解析不明 如果函数里有if ...
While循环和嵌套if语句是编程中常用的控制结构,它们分别用于循环和条件判断。然而,它们在某些情况下无法直接一起使用。 While循环是一种反复执行某段代码块的循环结构,它会根据条件的真假来判断是...
}else{ fmt.Println("Number is negative.") } } Output RUN 1: Input an integer number: 108 Number is positive. RUN 2: Input an integer number: -10 Number is negative. Go If-Else Statement Exercise Select the correct option to complete each statement about if-else statements in Go. ...
【Python-基础编程】编程入门在线练习题整理(2):for/while + if 1 赞同 3 收藏 这是刷 LeetCode 之前的热身系列(2)。 2.1 基于 While 循环输出1-10 2.2 每行输出1-n for i in range(1, 6): # i: 1, 2, 3, 4, 5 for j in range(1, i+1): print(j, end=' ') ## j 元素之间,用...
else block runs: alien_color = 'yellow' if alien_color == 'green': print("You just earned 5 points!") else: print("You just earned 10 points!") Output: You just earned 10 points! 5-5: Alien Colors #3 Turn your if-else chain from Exercise 5-4 into an if-elif-else cahin. ...
Go If-Else-If Ladder Statement Exercise Select the correct option to complete each statement about if-else-if ladder statements in Go. The keyword___is used in Go to check multiple conditions in a series of if-else statements. In an if-else-if ladder, the first___condition that evaluates...
If ... Else ❮ PreviousNext ❯ C# Conditions and If Statements C# supports the usual logical conditions from mathematics: Less than:a < b Less than or equal to:a <= b Greater than:a > b Greater than or equal to:a >= b