/usr/bin/python i = 20; if (i < 15): print ("i is smaller than 15") print ("i'm in if Block") else: print ("i is greater than 15") print ("i'm in else Block") print ("i'm not in if and not in else Block") 1. 输出结果为: i is greater than 15i'm in else ...
if condition_1: statement_block_1 elif condition_2: statement_block_2 else: statement_block_3 - 如果 "condition_1" 为 True 将执行 "statement_block_1" 块语句 - 如果 "condition_1" 为False,将判断 "condition_2" - 如果"condition_2" 为 True 将执行 "statement_block_2" 块语句 - 如果 "c...
2. 带有 For 循环的 Else 语句 For 循环和while循环是编程的孪生兄弟。如果我们可以在 while 循环中利用 else 语句的多功能性,那么毫无疑问它可以用于 for 循环。 这个想法是完全相同的: The "else" block only executes when there is no break in the for loop. "else" 块仅在 for 循环中没有中断时执行。
Can have anelseblockCan have anelseblock Remember, only one block of code will be executed. If theifstatement istrue, theelifandelseblocks will be skipped. If theifstatement isfalse, theelifblock will be executed. If theelifstatement isfalse, theelseblock will be executed. Here’s an exam...
if..elif..else The if-elif-else statement in Python is used to conditionally execute a statement or a block of statements. It helps control the flow of execution based on different conditions, evaluating expressions as either true or false. ...
1: statement_block_1 elif condition_2: statement_block_2 else: statement_block_3 ...
In computer programming, we use the if statement to run a block of code only when a specific condition is met. In this tutorial, we will learn about Python if...else statements with the help of examples.
1: statement_block_1 elif condition_2: statement_block_2 else: statement_block_3 ...
The Python if..else statement executes a block of code, if a specified condition holds true. If the condition is false, another route can be taken.
Out[66]:2In[68]: b Out[67]:1 2.条件语句———if、elif、else:冒号,缩进(4个空格为默认) number = 23guess= int(input('Enter an integer :'))#convert strings to a integerifguess ==number:print('Congratulations, you guessed it.')#New block starts hereprint('(but you do not win any...