boilerplate-budget-app

python 题

class Category:
  def __init__(self, name):
    self.name = name
    self.ledger = []
    
    self.final_amount = 0

  def __str__(self):
    x = (30 - len(self.name))//2
    Category_Str = f"{
      
      '*'*x}{
      
      self.name}{
      
      '*'*x}"
    if len(Category_Str) < 30:
      Category_Str+='*'
    Category_Str+='\n'
    
    for i in self.ledger:
      a = i['description']
      b = str(f"{
      
      i['amount']:.2f}")
      Category_Str += f"{
      
      a[:23]}{
      
      ' '*(30-len(a[:23])-len(b[:7]))}{
      
      b[:7]}\n"

    Category_Str += f"Total: {
      
      self.final_amount}"
    
    return Category_Str

  def deposit(self, amount, description=''):
    self.final_amount += amount
    self.ledger.append(
      {
    
    
        'amount': amount, 
        'description':description
      }
    )
    
  def withdraw(self, amount, description=''):
    if self.check_funds(amount):
      self.final_amount =  self.final_amount - amount
      self.ledger.append(
        {
    
    
          'amount': amount*-1, 
          'description':description
        }
      )
      return True
    else:
      return False
    
  def get_balance(self):
    return self.final_amount

  def transfer(self, amount, category):
    if self.check_funds(amount):
      self.withdraw(amount, f"Transfer to {
      
      category.name}")
      category.deposit(amount, f"Transfer from {
      
      self.name}")
      return True
    else:
      return False

  def check_funds(self, a):
    if self.final_amount - a >= 0:
      return True
    else:
      return False


def create_spend_chart(categories):
  a = []
  b = []
  d = []
  for c in categories:
    a.append(c.name.capitalize())
    b.append(sum([i['amount'] for i in c.ledger[1:]]))
    d.append(len(c.name.capitalize()))
  cc = []
  for aa in a:
    cc.append(aa + (max(d) - len(aa))*' ')
  

  b_sum = sum(b)
  b = [(i*100//b_sum//10) for i in b]
  
  str_1 = 'Percentage spent by category\n'
  for i in range(0, 110, 10):
    str_1 += f"{
      
      100-(i):3d}|"
    for j in b:
      if (100-i) // 10 > j:
        str_1 += "   "
      else:
        str_1 += " o "

    str_1 += ' \n'

  str_1 += f"{
      
      ' '*4}{
      
      '-'*(len(cc)*3+1)}\n"
  
  # print('end')

  for i in range(len(cc[0])):
    str_1 += f"{
      
      ' '*4}"
    for j in range(len(cc)):
      str_1 += f" {
      
      cc[j][i]} "
    str_1 += ' \n'
  return str_1[:-1] 
  

空格和换行，对不上都不行