wk2-answers.py

'''題目1'''

weekdays = ['Mon','Tue','Wed','Thu','Fri']

def good_print_weekday( num, weekdays ):
    if num > 5:
        print 'index too large'
    else:
        print weekdays[ num - 1]

good_print_weekday( 2, weekdays ) #Tue
good_print_weekday( 7, weekdays ) #index too large
'''如果輸入的數字太大 會被第4行的判斷式發現以避免 index out of range 錯誤發生'''

'''題目2'''

def umbrella_check( p ):
    if p > 50:
        print 'remember your umbrella'
    else:
        print 'no need umbrella'

umbrella_check( 30 ) #no need umbrella
umbrella_check( 51 ) #remember your umbrella

'''題目2 加分題'''
def good_umbrella_check( p ):
    if p > 50:
        if p == 100:
            print 'remember umbrella and raincoat'
        else:
            print 'remember your umbrella'
    else:
        print 'no need umbrella'

good_umbrella_check( 50 ) #no need umbrella
good_umbrella_check( 99 ) #remember your umbrella
good_umbrella_check( 100 ) #remember umbrella and raincoat

'''題目2 進階題'''
def rank( score ):
    if score >= 80:
        print '甲'
    else:
        if score >= 70:
            print '乙'
        else:
            if score >= 60:
                print '丙'
            else:
                print '丁'
rank(50)
rank(60)
rank(70)
rank(80)
rank(85)

'''題目3'''
def forever_hello():
    i = 0
    while i > -10:
        print 'hello'
#forever_hello()
'''可以在while中添加 i = i - 1'''

def forever_goodbye():
    i = 1
    while i != 10:
        print 'goodbye'
        i = i + 2
#forever_goodbye()
'''可以將 i = 1  改成 i = 0'''

'''題目4'''
def print_list(schedule):
    i = 0
    while i < len(schedule):
        print schedule[i]
        i = i + 1

monday = ['國', '國', '數', '數', '體', '英', '英']
wed = ['美', '美', '自', '自']

print_list( monday )
print_list( wed )