Question

$session_start();

extract($_POST);         
//extract data from submit post 

if(isset($submit))  
  {    
    if($user=="user" && $pass=="pass")    
      {     
        $_SESSION['user']= $user;       
        //if correct password and name store in session 
    } else {
        echo "Invalid user and password";
        header("Locatin:form.php")
    }
if(isset($_SESSION['user']))     
  {
  }

该代码旨在显示如下：

phonebook = {}

line = input('Name and colour: ')
while line:
  name, number = line.split()
  phonebook[name] = number
  line = input('Name and number: ')

for i in phonebook:
  print(i, phonebook[i])

我得到：

Name and colour: Nicky Blue

Name and colour: James Yellow

Name and colour: Sam Red

Name and colour: 

Sam Red

Nicky Blue

James Yellow

有人知道解决方法吗？

Answer 1

是正确的，只是在其他3行上显示 number 而不是 colour 只是一个拼写错误，而不是错误的代码。

脚本以以下内容开头： SELECT name, age, zip, jsonb_agg(ids ORDER BY ids) FROM ( SELECT name, age, zip, jsonb_array_elements(id) as ids FROM test) AS sub GROUP BY name, age, zip; name | age | zip | jsonb_agg ------+-----+-------+------------------------------------------ abc | 25 | 11111 | ["2722", "2722", "2855", "2855", "3583"]

，并在line = input('Name and colour: ')循环中指出：

while line

替换为：

line = input('Name and number: ')

反之亦然。

Answer 2

如果要保留插入元素的顺序，则需要使用OrderedDict而不是字典对象：

from collections import OrderedDict

phonebook = OrderedDict()

Answer 3

user = {}
line = input('Name and colour: ')
while line:
  name, colour = line.split()
  user[name] = colour
  line = input('Name and colour: ')
for i in user:
  print(i, user[i])

最喜欢的颜色

3 个答案: