print(numbers[3]) # IndexError: list index out of range 调试技巧: 使用len()函数检查列表长度。 确保索引在合法范围内。 index = 3 if index < len(numbers): print(numbers[index]) else: print(f"Index {index} is out of range.") TypeError: List Indices Must Be Integers or Slices, Not st...
1. 查找与索引 find() 和 index() find():返回子字符串首次出现的索引,未找到返回 -1。 index():功能类似,但未找到时抛出 ValueError。 python s = "hello world" print(s.find("softview4.com")) # 输出: 6 print(s.find("python")) # 输出: -1 print(s.index("world")) # 输出: 6 # pr...
index = len(value) # 获取需要写入数据的行数 workbook = xlwt.Workbook() # 新建一个工作簿 sheet = workbook.add_sheet(sheet_name) # 在工作簿中新建一个表格 for i in range(0, index): for j in range(0, len(value[i])): sheet.write(i, j, value[i][j]) # 像表格中写入数据(对应的...
14 #for item in product_list: 15 # print(product_list.index(item),item) 16 for index,item in enumerate(product_list): 17 print(index,item) 18 print('input q to finish your shopping') 19 user_choice = input("please input your goods number:") 20 if user_choice.isdigit(): 21 user...
Python program to print Palindrome numbers from the given list# Give size of list n = int(input("Enter total number of elements: ")) # Give list of numbers having size n l = list(map(int, input().strip().split(" "))) # Print the input list print("Input list elements are:", ...
Find the index of an item given a list containing it in Python Extract Even and odd number from a given list in Python Remove falsy values from a list in Python Python program to remove multiple elements from a list using list comprehension Check all elements of a list are the same or...
百度试题 结果1 题目Python语句序列“fruits=['apple','banana','pear']”;print(fruits.index('apple'))"的运行结果是( )。相关知识点: 试题来源: 解析 0 反馈 收藏
In this article, you have learned different ways to print lists in Python without brackets. Learned to use*operator, print a list as a string, using list comprehension. Related Articles Get Index of Max of List in Python Python Remove None From List ...
airQualityHealthIndex integer The index value of air quality health.Get carbon footprint from car travelOperation ID: CarbonFootprintFromCarTravel Returns the CO2e in Kg from a travel by car. Parameters 展开表 NameKeyRequiredTypeDescription Distance distance True string The distance in KMs. Vehic...
route('/login') def loginIndex(): return "login Hello" 在app实例初始化时,引入蓝图模块 代码语言:python 代码运行次数:0 运行 AI代码解释 from flask import Flask def create_app(): app = Flask(__name__) # 导入config中的配置文件 app.config.from_object('app.config.setting') app.config.from...