来检查多个条件。例如：```pythonx = 10y = 5if x > y: print("x is greater than y")elif x == y: print("x is equal to y")elif* (x < y): # 检查多个条件，如果前面的条件都不满足则执行该条件下的代码块 print("y is greater than or equal to x")```在这个例子中，我...
print("str1 is greater than str2") else: print("The strings are equal") 2. 使用str.compare()方法 虽然Python 3已经弃用了str.compare()方法,但仍然可以在Python 2中使用它来进行字符串比较,该方法返回一个整数,表示比较的结果,如果返回值为0,则两个字符串相等;如果返回值小于0,则左侧字符串小于右侧...
if语句可以有多个条件分支，例如使用elif:python for i in range(10):if i < 5:print("Less than five:", i)elif i < 8:print("Greater than or equal to five, but less than eight:", i)else:print("Greater than or equal to eight:", i)这个例子中，for循环遍历从0到9的整数。根据i的不同...
dogs+= 10ifpeople >=dogs:print("People are greater than or equal to dogs.")else:print("People are less than dogs") 输出结果: 注意: if 、elif、else后需要加冒号。 数值型数据需要使用int()。 测试小游戏: print("Now you are lost in the forest, you can see a house in your left and ...
x = 10 if x > 0: print("x is positive") elif x == 0: print("x is zero") else: print("x is negative") # 嵌套if语句 if x > 0: if x < 20: print("x is between 0 and 20") else: print("x is greater than or equal to 20") 调试技巧 使用断点:在复杂的逻辑中,可...
x=10result="x is greater than 5"ifx>5else"x is less than or equal to 5"print(result) 1. 2. 3. 在这个例子中,根据x是否大于5,将不同的值赋给result变量。这种方式也称为条件表达式,可以简洁地实现根据条件赋值的逻辑。 3. 完整示例
People are greater than or equal to dogs. People are less than or equal to dogs. People are dogs 加分习题: Q1.你认为 if 对于它下一行的代码做了什么?if 语句会根据其中语句的布尔值(True、False)影响其下一行代码是否执行。如果是真(if something Ture),就执行下面的代码。否则不执行。Q2.为什么if...
CodeCodeInitialize list lstFilter elements greater than or equal to 5Print filtered elements 通过序列图示例,我们可以更直观地理解for循环和if语句在一行代码中的执行过程。 甘特图示例 接下来,我们使用mermaid语法标识一个甘特图示例,展示了使用多行代码和一行代码实现同样功能的时间对比。
Compared to if alone, if else provides a choice if the condition is not satisfied. The format of the Else statement is "else:". Continue the previous program, add else statements after the entire if statement, and output else programs when the age is not greater than or equal to 18.三...
root@he-desktop:~/mystuff# python ex29.py Too many cats! The world is doomed! The world is dry! People are greater than or equal to dogs. People are less than or equal to dogs. People are dogs. 加分练习 通过上面的练习,我们自己猜测一下if语句的作用,用自己的话回答下面的问题。