6-1.可以string.find(str,beg=0,end=len(string))
6-2.稍後
6-3.
(a)>>> a=[1,2,5,6,7,3,4]
>>> sorted(a)
[1, 2, 3, 4, 5, 6, 7]
(b)
6-4
#!/usr/bin/env python
grades=raw_input('Type the grades:')
new_grades=grades.split()
another_new_grades=[]
for i in new_grades:
s=int(i)
another_new_grades.append(s)
for i in another_new_grades:
if i >=90:
print ('%s is A level') %i
elif i>=80:
print ('%s is B level') %i
elif i>=70:
print ('%s is C level') %i
elif i>=60:
print ('%s is D level') %i
else:
print ('%s is E level') %i
ave_grade=sum(another_new_grades)/len(another_new_grades)
print ('the average grade is %s' %ave_grade)
6-5
#!/usr/bin/env python
input_str=raw_input('Type a string:')
lens=len(input_str)
if lens==0:
print "You did not type string!"
if lens==1:
print input_str
for i,j in enumerate(input_str):
if i==0 and lens !=1:
print j,input_str[i+1]
elif i==lens-1 and i!=0:
print input_str[i-1],j
else:
print input_str[i-1],j,input_str[i+1]
6-6
#!/usr/bin/env python
import string
def my_str_strip(_str):
if len(_str) <=0:
return _str
while _str[0]==' ':
_str=_str[1:len(_str)]
while _str[len(_str)-1]==' ':
_str=_str[0:len(_str)-1]
return _str
print my_str_strip(' abc abc ')
6-7
#!/usr/bin/env python
# -*- coding: utf-8 -*-
num_str=raw_input('Enter the number:')
num_num=int(num_str)
fac_list=range(1,num_num+1)
print ("Before:",fac_list)
i=0
while i
print ("len(fac_list):,i",len(fac_list),i)
if num_num % fac_list[i]==0:
print (fac_list[i])
del fac_list[i]
else:
i=i+1
print "After:", fac_list
6-8
_min=input("Type tolmin:")
def min_to_hr(_min):
hr=0
_min2=0
_min/60=hr
_min%60=_min2
print hr,_min2
min_to_hr(_min)
6-9
minute=raw_input('Type the num:')
def hour_minute(minute):
minute = int(minute)
hour = minute // 60
minute = minute % 60
print(hour,':',minute)
hour_minute(minute)
6-10
input_str=raw_input("Type the string:")
new_m=[]
for i in input_str:
if i.isupper()==True:
new_m.append(i.lower())
else:
new_m.append(i.upper())
print new_m
6-12:
def findchr(string, char):
count=0
for i,j in enumerate(string):
print (i,j)
if char==j:
count=count+1
if count>0:
return True
else:
return False
print findchr('apple','e')
print findchr('banana','q')
6-13略
6-14
import random
user=raw_input("Type the number:")
user2=random.randint(0,3)
print ('user2:',user2)
if user==user2:
print 'same'
elif user>user2:
print 'win'
else:
print 'Lose'
