numbers=[1,2,3,4,5,6,7,8,9,10]fornumberinnumbers:ifnumber==5:breakprint(number) 1. 2. 3. 4. 5. 6. 在上面的代码中,我们定义了一个列表numbers,然后使用for循环遍历这个列表。在循环的过程中,如果当前元素等于5,那么就使用break关键字来终止循环。因此,当number等于5时,循环将被终止。 流程图 ...
Check if the input is a number using int() or float() in Python Theint()orfloat()method is used to convert any input string to a number. We can use this function to check if the user input is a valid number. If the user input is successfully converted to a number usingint()orfl...
1、for...in...循环语句 1)for循环:空房间 #空房间的学名叫【元素】(item),因为英文是item,所以i是常用名,你可以把它当成是一个变量。foriin[1,2]:print(i)fornumberin[1,2]:print(number)forLOVEin[1,2]:print(LOVE)>>> 1 2 1 2 1 2#业务结束之后,最后一个走进去的5留在了房间里,被打印...
下面是一个示例代码,演示了如何使用两个if语句来筛选出列表中符合条件的元素: # 假设我们有一个包含整数的列表numbers=[1,2,3,4,5,6,7,8,9,10]# 使用两个if语句筛选出列表中的奇数且大于5的元素filtered_numbers=[numberfornumberinnumbersifnumber%2!=0ifnumber>5]# 打印筛选后的结果print(filtered_numbe...
banned_users.py banned_users = ['andrew', 'carolina', 'david'] user = 'marie' ❶ if user not in banned_users: print(f"{user.title()}, you can post a response if you wish.") ❶处的代码行明白易懂:如果user的值未包含在列表banned_users中,Python将返回True,进而执行缩进的代码行。
print 'zhang is in name' else: print 'zhang is not in name' elif嵌套结构: if 条件: if语句块 elif 条件: elif语句块 else: else语句块 用于检查多个条件是否满足: number1 = int(input("请输入数字1:")) number2 = int(input("请输入数字2:")) ...
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...
os.makedev(major,minor)(根据指定的主设备号、次设备号创建设备,Composes a rawdevice number from the major and minor device numbers.) os.major(device)(根据指定的设备获取主设备号,Extracts a devicemajor number from a raw device number.) os.minor(device)(根据指定的设备获取次设备号,Extracts a dev...
number".format(a)) ... a -= 1 ... >>> print("{} is even number".format(a))a ...
Here's an example of a nested "if" statement in Python: num = 5 if num > 0: if num % 2 == 0: print("The number is positive and even.") else: print("The number is positive and odd.") else: print("The number is negative.") ...