尝试对Python列表求和

这是我在这里的第一篇文章，我正在学习和练习Python

问题是，我试图在for循环之后运行的任何东西都没有运行，因此在最后我无法获得总计数。也许我应该创建一个函数，但现在我需要知道为什么会发生这种情况，我做错了什么

lst = ["32.225.012", "US", "574.280", "17.997.267", "India", "201.187", "14.521.289", "Brazil", "398.185", "5.626.942", "France", "104.077", "4.751.026", "Turkey", "39.398", "4.732.981", "Russia", "107.547", "4.427.433", "United Kingdom", "127.734", "3.994.894", "Italy", "120.256", "3.504.799", "Spain", "77.943", "3.351.014", "Germany", "82.395", "2.905.172", "Argentina", "62.599", "2.824.626", "Colombia", "72.725", "2.776.927", "Poland", "66.533", "2.459.906", "Iran", "70.966", "2.333.126", "Mexico", "215.547", "2.102.130", "Ukraine", "45.211", "1.775.062", "Peru", "60.416", "1.657.035", "Indonesia", "45.116", "1.626.033", "Czechia", "29.141", "1.578.450", "South Africa", "54.285", "1.506.455", "Netherlands", "17.339", "1.210.077", "Canada", "24.105", "1.184.271", "Chile", "26.073", "1.051.868", "Iraq", "15.392", "1.051.779", "Romania", "27.833", "1.020.495", "Philippines", "17.031", "979.034", "Belgium", "24.104", "960.520", "Sweden", "14.000", "838.323", "Israel", "6.361", "835.563", "Portugal", "16.973", "810.231", "Pakistan", "17.530", "774.399", "Hungary", "27.172", "754.614", "Bangladesh", "11.305", "708.265", "Jordan", "8.754", "685.937", "Serbia", "6.312", "656.077", "Switzerland", "10.617", "614.510", "Austria", "10.152", "580.666", "Japan", "10.052", "524.241", "Lebanon", "7.224", "516.301", "United Arab Emirates", "1.580", "510.465", "Morocco", "9.015", "415.281", "Saudi Arabia", "6.935", "402.491", "Bulgaria", "16.278", "401.593", "Malaysia", "1.477", "381.180", "Slovakia", "11.611", "377.662", "Ecuador", "18.470", "366.709", "Kazakhstan", "3.326", "363.533", "Panama", "6.216", "355.924", "Belarus", "2.522", "340.493", "Greece", "10.242", "327.737", "Croatia", "7.001", "316.521", "Azerbaijan", "4.461", "312.699", "Nepal", "3.211","307.401", "Georgia", "4.077", "305.313", "Tunisia", "10.563", "300.258", "Bolivia", "12.885", "294.550", "West Bank and Gaza", "3.206", "271.814", "Paraguay", "6.094", "271.145", "Kuwait", "1.546", "265.819", "Dominican Republic", "3.467", "255.288", "Ethiopia", "3.639", "250.479", "Denmark", "2.482", "250.138", "Moldova", "5.780", "247.857", "Ireland", "4.896", "244.555", "Lithuania", "3.900", "243.167", "Costa Rica", "3.186", "238.421", "Slovenia", "4.236", "224.621", "Guatemala", "7.478", "224.517", "Egypt", "13.168", "214.872", "Armenia", "4.071", "208.356", "Honduras", "5.212", "204.289", "Qatar", "445","197.378", "Bosnia and Herzegovina", "8.464", "193.721", "Venezuela", "2.082", "192.326", "Oman", "2.001","190.096", "Uruguay", "2.452", "176.701", "Libya", "3.019","174.659", "Bahrain", "632","164.912", "Nigeria", "2.063", "158.326", "Kenya", "2.688","151.569", "North Macedonia", "4.772", "142.790", "Burma", "3.209","130.859", "Albania", "2.386", "121.580", "Algeria", "3.234", "121.232", "Estonia", "1.148", "120.673", "Korea. South", "1.821", "117.099", "Latvia", "2.118", "111.915", "Norway", "753","104.953", "Sri Lanka", "661", "104.512", "Cuba", "614","103.638", "Kosovo", "2.134", "102.426", "China", "4.845","97.080", "Montenegro", "1.485", "94.599", "Kyrgyzstan", "1.592", "92.513", "Ghana", "779","91.484", "Zambia", "1.249","90.008", "Uzbekistan", "646", "86.405", "Finland", "908","69.804", "Mozambique", "814", "68.922", "El Salvador", "2.117", "66.826", "Luxembourg", "792", "65.998", "Cameroon", "991","63.720", "Cyprus", "303","61.699", "Thailand", "178","61.086", "Singapore", "30","59.370", "Afghanistan", "2.611", "48.177", "Namibia", "638","46.600", "Botswana", "702","45.885", "Cote d'Ivoire", "285", "45.292", "Jamaica", "770","41.766", "Uganda", "341","40.249", "Senegal", "1.107", "38.191", "Zimbabwe", "1.565", "36.510", "Madagascar", "631", "34.052", "Malawi", "1.147","33.944", "Sudan", "2.349","33.608", "Mongolia", "97","30.249", "Malta", "413","29.768", "Congo Kinshasa", "763", "29.749", "Australia", "910", "29.052", "Maldives", "72","25.942", "Angola", "587","24.888", "Rwanda", "332","23.181", "Cabo Verde", "213", "22.568", "Gabon", "138","22.513", "Syria", "1.572","22.087", "Guinea", "141","18.452", "Eswatini", "671","18.314", "Mauritania", "455", "13.915", "Somalia", "713","13.780", "Mali", "477","13.308", "Tajikistan", "90", "13.286", "Burkina Faso", "157", "13.148", "Andorra", "125","13.017", "Haiti", "254","12.963", "Guyana", "293","12.898", "Togo", "122","12.631", "Belize", "322","11.761", "Cambodia", "88","10.986", "Djibouti", "142","10.915", "Papua New Guinea", "107", "10.730", "Lesotho", "316","10.678", "Congo Brazzaville", "144", "10.553", "South Sudan", "114", "10.220", "Bahamas", "198","10.170", "Trinidad and Tobago", "163", "10.157", "Suriname", "201","7.821", "Benin", "99","7.559", "Equatorial Guinea", "107", "6.898", "Nicaragua", "182","6.456", "Iceland", "29","6.359", "Central African Republic", "87", "6.220", "Yemen", "1.207","5.882", "Gambia", "174","5.354", "Seychelles", "26","5.220", "Niger", "191","5.059", "San Marino", "90","4.789", "Chad", "170","4.508", "Saint Lucia", "74", "4.049", "Sierra Leone", "79", "3.941", "Burundi", "6","3.833", "Comoros", "146","3.831", "Barbados", "44","3.731", "Guinea-Bissau", "67", "3.659", "Eritrea", "10","2.908", "Liechtenstein", "57", "2.865", "Vietnam", "35","2.610", "New Zealand", "26", "2.447", "Monaco", "32","2.301", "Sao Tome and Principe", "35", "2.124", "Timor-Leste", "3","2.099", "Liberia", "85","1.850", "Saint Vincent and the Grenadines", "11", "1.232", "Antigua and Barbuda", "32", "1.207", "Mauritius", "17","1.116", "Taiwan", "12","1.059", "Bhutan", "1","712", "Diamond Princess", "13", "604", "Laos", "0","509", "Tanzania", "21","224", "Brunei", "3","173", "Dominica", "0","159", "Grenada", "1","111", "Fiji", "2","44", "Saint Kitts and Nevis", "0", "27", "Holy See", "0","20", "Solomon Islands", "0", "9", "MS Zaandam", "2","4", "Marshall Islands", "0", "4", "Vanuatu", "1","3", "Samoa", "0","1", "Micronesia", "0"]

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除了建议将数据集的名称替换为不使用保留字列表之外，我的建议是在如下示例中利用内置

范围内的跳过功能：

# Lists to store data
countries = []
total_cases = []
total_deaths = []

# Iterate over thje range of the data skipping 3 at a time: 0, 3, ...
for x in range(0, len(data), 3):
    # Parse out the cases a deaths to ints
    cases = int(data[x].replace('.', ''))
    deaths = int(data[x+2].replace('.', ''))
    
    # We can just extract the country label
    country_label = data[x+1]
    
    countries.append(country_label)
    total_cases.append(cases)
    total_deaths.append(deaths)
    
# Get the desired sums
sum_cases = sum(total_cases)
sum_deaths = sum(total_deaths)

print(f"The total cases: {sum_cases}")
print(f"The total deaths: {sum_deaths}")

在上面，我将您的数据集重命名为
data
，并能够对每个列表进行汇总。
请发布您的代码，以便我们了解问题所在。这是否回答了您的问题？问题标题是sum python list，但列表内容是字符串。您正在尝试连接字符串吗？然后你问伯爵。。。那就是莱恩（名单）。另外，注意列表在python中是一个关键字，所以请使用_列表或非关键字。下面是代码的其余部分，在发布之前必须正确缩进，很抱歉延迟。我想使用len（）来计算国家列表中有多少个国家。谢谢，对我来说似乎有点复杂。如果不清楚，我可以解释得更详细，非常好，非常感谢你！
sum = 0 
for i in range(2,len(l),3): # l is your list of data , 
    sum = sum+int(l[i].replace('.','')) # here I removed the point between numbers ex: 574.280 --> 574280
print(sum)

#output : 3145239

# Lists to store data
countries = []
total_cases = []
total_deaths = []

# Iterate over thje range of the data skipping 3 at a time: 0, 3, ...
for x in range(0, len(data), 3):
    # Parse out the cases a deaths to ints
    cases = int(data[x].replace('.', ''))
    deaths = int(data[x+2].replace('.', ''))
    
    # We can just extract the country label
    country_label = data[x+1]
    
    countries.append(country_label)
    total_cases.append(cases)
    total_deaths.append(deaths)
    
# Get the desired sums
sum_cases = sum(total_cases)
sum_deaths = sum(total_deaths)

print(f"The total cases: {sum_cases}")
print(f"The total deaths: {sum_deaths}")