Variable：在程序中存储数据的标识符。Assignment：将值分配给变量的操作。Function：一段可重用的代码块，执行特定任务。Method：属于对象或类的函数。Argument：传递给函数的值。Parameter：函数定义中预期的值或输入。Return value：函数执行后返回的值。数据类型 Integer：不带小数点
条件语句（Conditional Statement）if Statementif语句Comparison Operators比较运算符else Statementelse语句Logi...
we have a technique calledMnemonic(记忆的).The idea is when you choose a variable name,you should choose a variable name to be sensible and Python doesnt care whether you choose mnemonic variable names or not. Assignment Statements: An assignment statement consists of an expression on the right...
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...
The effect of anassignment statementis to bind a name to a value in the first frame of the current environment. As a consequence, assignment statements within a function body cannot affect the global frame. 1.5.4 Conditional Statements
Like most programming languages, Python provides a method for conditional select statements. The IF statement evaluates a logical expression in order to make a decision based on the result of the evaluation. Continuing with our banner-grabbing script, we would like to know if the specific FTP ser...
Normal mode is typically the mode that you use during development, while optimized mode is what you should use in production. Now, what does __debug__ have to do with assertions? In Python, the assert statement is equivalent to the following conditional:...
StatementAssignmentVariableName 5 5 0 StatementConditional 1 0 1 StatementExpressionOnly 3 0 3 StatementReleaseVariableParameter 2 2 0 StatementReraiseException 1 0 1 StatementReturnNone 1 0 1 StatementReturnReturnedValue 1 1 0 StatementTry 1 0 1 ...
One line if else statement: a =2 b =330 print("A")ifa > belseprint("B") Try it Yourself » This technique is known asTernary Operators, orConditional Expressions. You can also have multiple else statements on the same line:
Else if statement 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...