实例(Python 3.0+) # Filename : test.py# author by : www.runoob.com# 用户输入数字num=float(input("输入一个数字:"))ifnum>0:print("正数")elifnum==0:print("零")else:print("负数") 执行以上代码输出结果为: 输入一个数字:3正数 我们也可以使用内嵌 if 语句来实现: 实例(Python 3.0+) # F...
Python doesn't have a ternary operator. However, we can useif...elseto work like a ternary operator in other languages. For example, grade =40ifgrade >=50: result ='pass'else: result ='fail'print(result) Run Code can be written as grade =40result ='pass'ifnumber >=50else'fail'pr...
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if __name__ == '__main__': print("This script is being run directly.") function_a() 如果你直接运行example.py(例如,在命令行中输入python example.py),输出将是: This script is being run directly. Function A is called. 但是,如果你在另一个 Python 文件中导入example.py(例如import example...
Python 中的 for 语句与你在 C 或 Pascal 中所用到的有所不同。 Python 中的 for 语句并不总是对算术递增的数值进行迭代(如同 Pascal),或是给予用户定义迭代步骤和暂停条件的能力(如同 C),而是对任意序列进行迭代(例如列表或字符串),条目的迭代顺序与它们在序列中出现的顺序一致。 例如(此处英文为双关语):...
python的代码块分隔符: 1. x=1 2. if x: 3. 2 4. if y: 5. print'block2' 6. print'block1' 7. print 'block0' 1. 2. 3. 4. 5. 6. 7. 以上面这段代码为例,包含三个模块:第一个完全没有缩进,第二个缩进四格,第三个缩进八格,这里注意,python不在乎你怎么缩进代码。只在乎缩进是否一致...
Python Compound If Statement Example AND, OR, NOT in Python if Command Python if Command Error Messages This is the Python if statement syntax. The following examples will show how this syntax can be used properly. if_stmt ::= "if" expression ":" suite ...
我试着把if语句改成else语句。但如果有效,仍然只有一半。这意味着,用户输入一个单词,如果该单词=Next,则会删除该行中的第一个人。如果用户键入除“下一步”以外的任何其他单词,则会将其添加到列表的末尾。 Example below: # This is just a line manager :D ...
The same example above can be written as an inline invocation. Here, we surround the lambda function with parentheses and place the values for the arguments next to it enclosed within parentheses.# Lambda function using if-else min = (lambda a, b : a if(a < b) else b)(10,20) print...
Example IF function, step by step:Select the cell D2 Type =IF Click the IF commandSpecify the condition C2>500 Type , Specify the value "Yes" for when the condition is TRUE Type , Specify the value "No" for when the condition is FALSE Hit enter...