6.2 条件语句 所谓条件语句(Conditional Statement),顾名思义,就是依据某个条件来执行指定的代码。 首先看只有一个条件分支的语句结构,如图6-2-1所示: if:发起条件语句的关键词,注意只能是小写字母。 bool(expression)如果表达式的布尔值是True,就执行此条件分支下面的语句块;否则不执行。 :,英文状态下的冒号,表示...
So far, we have presented a Boolean option for conditional statements, with eachifstatement evaluating to either true or false. In many cases, we will want a program that evaluates more than two possible outcomes. For this, we will use anelse ifstatement, which is written in Python aselif....
Decision-making helps in deciding the flow of execution of the program. Decision-making is implemented using if else in Python. The conditional logic in Python is primarily based on the ‘if else’ structure. Starting from the if statement, it is the most basic decision-making statement. It ...
In a Python program, the if statement is how you perform this sort of decision-making. It allows for conditional execution of a statement or group of statements based on the value of an expression.The outline of this tutorial is as follows:...
Control statements are statements that control the flow of a program's execution based on the results of logical comparisons. Statements differ fundamentally from the expressions that we have studied so far. They have no value. Instead of computing something, executing a control statement determines ...
However, you can use any Python object in a Boolean context, such as a conditional statement or a while loop.In Python, all objects have a specific truth value. So, you can use the logical operators with all types of operands.Python has well-established rules to determine the truth value...
Write a Python program that prints all the numbers from 0 to 6 except 3 and 6.Note : Use 'continue' statement. Expected Output : 0 1 2 4 5 Click me to see the sample solution9. Fibonacci Series Between 0 and 50Write a Python program to get the Fibonacci series between 0 and 50....
return statement >> -Try– A try statement >> -While– A while statement >> -With– A with statement > -Expr– An expression >> -Attribute– An attribute, obj.attr >> -Call– A function call, f(arg) >> -IfExp– A conditional expression, x if cond else y >> -Lambda– A ...
Continuing on the same example, we will try to put up one more check in case the"if "conditional statement fails. Guess the output for the following code: age =35if(age ==40): print("The age is 40") elif(age ==35): print("Age is 35") ...
=== RESTART: C:\ProgramFiles\Python\Python36\test.py === my favorite number is 8 动手试一试 2-10 添加注释:选择你编写的两个程序,在每个程序中都至少添加一条注释。如果程序太简单,实在没有什么需要说明的,就在程序文件开头加上你的姓名和当前日期,再用一句话阐述程序的功能。 动手试一试 2-11 Python...