Python的控制结构之For、While、If循环问题

res = range(3) 
print(list(res)) 
 
#输出：[0, 1, 2] 

for i in range(3): 
print(i) 
 
'''输出： 
0 
1 
2 
''' 

martial_arts = ["Sambo","Muay Thai","BJJ"] 
for martial_art in martial_arts: 
 print(f"{ martial_art} has influenced\ 
  modern mixed martial arts") 
 
'''输出： 
Sambo has influenced modern mixed martial arts 
Muay Thai has influenced modern mixed martial arts 
BJJ has influenced modern mixed martial arts 
''' 

def attacks(): 
 list_of_attacks = ["lower_body", "lower_body", 
  "upper_body"] 
 print("There are a total of {lenlist_of_attacks)}\ 
  attacks coming!") 
 for attack in list_of_ attacks: 
 yield attack 
attack = attacks() 
count = 0 
while next(attack) == "lower_body": 
 count +=1 
 print(f"crossing legs to prevent attack #{count}") 
else: 
 count += 1 
 print(f"This is not lower body attack, \ 
I will cross my arms for# count}") 
 
'''输出： 
There are a total of 3 attacks coming! 
crossing legs to prevent attack #1 
crossing legs to prevent attack #2 
This is not a lower body attack, I will cross my arms for #3 
''' 

def recommended_attack(position): 
 """Recommends an attack based on the position""" 
 if position == "full_guard": 
 print(f"Try an armbar attack") 
 elif position == "half_guard": 
 print(f"Try a kimura attack") 
 elif position == "fu1l_mount": 
 print(f"Try an arm triangle") 
 else: 
 print(f"You're on your own, \ 
  there is no suggestion for an attack") 
recommended_attack("full_guard")#输出：Try an armbar attack 
recommended_attack("z_guard") 
 
#输出：You're on your own, there is no suggestion for an attack 

def lazy_return_random_attacks(): 
 """Yield attacks each time""" 
 import random 
 attacks = {"kimura": "upper_body", 
  "straight_ankle_lock": "lower_body", 
  "arm_triangle": "upper_body", 
  "keylock": "upper_body", 
  "knee_bar": "lower_body"} 
 while True: 
  random_attack random.choices(list(attacks.keys())) 
  yield random attack 
 
#Make all attacks appear as Upper Case 
upper_case_attacks = \ 
  (attack.pop().upper() for attack in \ 
  lazy_return_random_attacks()) 
next(upper-case_attacks) 
 
#输出：ARM-TRIANGLE 
## Generator Pipeline: One expression chains into the next 
#Make all attacks appear as Upper Case 
upper-case_attacks =\ 
 (attack. pop().upper() for attack in\ 
 lazy_return_random_attacks()) 
#remove the underscore 
remove underscore =\ 
 (attack.split("_")for attack in\ 
 upper-case_attacks) 
#create a new phrase 
new_attack_phrase =\ 
 (" ".join(phrase) for phrase in\ 
 remove_underscore) 
next(new_attack_phrase) 
 
#输出：'STRAIGHT ANKLE LOCK' 
for number in range(10): 
 print(next(new_attack_phrase)) 
 
'''输出： 
KIMURA 
KEYLOCK 
STRAIGHT ANKLE LOCK 
''' 

martial_arts = ["Sambo", "Muay Thai", "BJJ"] 
new_phrases [f"mixed Martial Arts is influenced by \ 
 (martial_art)" for martial_art in martial_arts] 
print(new_phrases) 
['Mixed Martial Arts is influenced by Sambo', \ 
'Mixed Martial Arts is influenced by Muay Thai', \ 
'Mixed Martial Arts is influenced by BJJ'] 

"""This is a simple module""" 
def list_of_belts_in_bjj(): 
 """Returns a list of the belts in Brazilian jiu-jitsu""" 
 belts= ["white", "blue", "purple", "brown", "black"] 
 return belts 
import sys;sys.path.append("..") 
from funclib import funcmod 
funcmod.list_of_belts_in-bjj() 
 
#输出：['white', 'blue', 'purple', 'brown', 'black'] 

> ca requirements.txt 
pylint 
pytest 
pytest-cov 
click 
jupyter 
nbval 
 
> pip install -r requirements.txt 

"""This is a simple module""" 
 
import pandas as pd 
 
def list_of_belts_in_bjj(): 
 """Returns a list of the belts in Brazilian jiu-jitsu""" 
 
 belts = ["white", "blue", "purple", "brown", "black"] 
 return belts 
 
def count_belts(): 
 """Uses Pandas to count number of belts""" 
 
 belts = list_of_belts_in_bjj() 
 df = pd.Dataframe(belts) 
 res = df.count() 
 count = res.values.tolist()[0] 
 return count 
from funclib.funcmod import count_belts 
print(count_belts()) 
 
#输出：5 

class Competitor: pass 
conor = Competitor() 
conor.name = "Conor McGregor" 
conor.age = 29 
conor.weight = 155 
nate = Competitor() 
nate.name = "Nate Diaz" 
nate.age = 30 
nate.weight = 170 
def print_competitor _age(object): 
 """Print out age statistics about a competitor""" 
 
 print(f"{object.name} is {object.age} years old") 
print_competitor_age(nate) 
 
#输出：Nate Diaz is 30 years old 
print_competitor_age(conor) 
 
#输出：Conor McGregor is 29 years old