从表python中获取值

Question

使用pandas从以下数据中获取值。

            p1    p2    p3
   ABC     yes   no     yes
   DEF     yes   no     no
   ghi     no    no     no

正确的方法是使用pandas库

Answer 1

我认为您正在寻找#include <algorithm> #include <iostream> #include <vector> int main() { std::cout << "Please enter 3 values" << '\n'; std::vector<int> values; for (int i = 0; i < 3; ++i) { int value; std::cin >> value; values.push_back(value); } std::sort(values.begin(), values.end()); std::cout << values[0] << ", " << values[1] << ", " << values[2] << '\n'; return 0; } ，即如果您有数据框

.loc

      p1  p2
ABC  yes  no
EFG   no  no
GHI   no  no

import pandas as pd 
df = pd.DataFrame({'p1':['yes','no','no'],'p2':['no','no','no']},index=['ABC','EFG','GHI'])

输出：df.loc['GHI','p2']