age=11
if age>=18:
print('adult')
print('咚咚嗆同學(xué),你已成年')
else:
print('teenage')
print('咚咚嗆同學(xué),你未成年')
if age>=18:
print('adult')
print('咚咚嗆同學(xué),你已成年')
else:
print('teenage')
print('咚咚嗆同學(xué),你未成年')
2021-12-05
#方案一
age=17
if age<18:
print("adult")
else:
print("minors")
#方案二
age = 17
if age >= 18:
print('your age = {}'.format(age))
print('adult')
else:
print('your age = {}'.format(age))
print('minors')
age=17
if age<18:
print("adult")
else:
print("minors")
#方案二
age = 17
if age >= 18:
print('your age = {}'.format(age))
print('adult')
else:
print('your age = {}'.format(age))
print('minors')
2021-12-05
#方法一:
a='AABCDEFGHHIJ'
b=a[1:9]
print(b)
#方法二:
a='AABCDEFGHHIJ'
print(a[1:9])
a='AABCDEFGHHIJ'
b=a[1:9]
print(b)
#方法二:
a='AABCDEFGHHIJ'
print(a[1:9])
2021-12-05
a='AABCDEFGHHIJ'
b=a[1:9]
print(b)
#方法二:
a='AABCDEFGHHIJ'
print(a[1:9])
b=a[1:9]
print(b)
#方法二:
a='AABCDEFGHHIJ'
print(a[1:9])
2021-12-05
a = "這是一句中英文混合的Python字符串:"
b = 'Hello World!'
print(a+b)
a = '這是一句中英文混合的Python字符串:Hello World!'
print(a)
b = 'Hello World!'
print(a+b)
a = '這是一句中英文混合的Python字符串:Hello World!'
print(a)
2021-12-05
a = 'python'
#a 是True,結(jié)果輸出='python'
print('hello,', a or 'world')
b = ''
#b 是False,結(jié)果輸出='world'
print('hello,', b or 'world')
#a 是True,結(jié)果輸出='python'
print('hello,', a or 'world')
b = ''
#b 是False,結(jié)果輸出='world'
print('hello,', b or 'world')
2021-12-05
print() #打印輸出結(jié)果
注意輸出結(jié)果Hello World前后都有單引號(hào)' #單引號(hào)為英文字符,不是中文字符
print和>>>中間不可以有空格,否則會(huì)報(bào)錯(cuò)
注意(、)、'、')均為英文字符
注意輸出結(jié)果Hello World前后都有單引號(hào)' #單引號(hào)為英文字符,不是中文字符
print和>>>中間不可以有空格,否則會(huì)報(bào)錯(cuò)
注意(、)、'、')均為英文字符
2021-12-04
print("{} {} {},{} {} {}".format("Life","is","short","you","need","Python"))
print("{a} {c},nhkv1sx5v02o {e} {f}".format(a="Life",b="is",c="short",d="you",e="need",f="Python"))
print("{a} {c},nhkv1sx5v02o {e} {f}".format(a="Life",b="is",c="short",d="you",e="need",f="Python"))
2021-12-03
Names = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
names = []
for i in Names:
name=i.lower()
names.append(name)
for l in names:
if i not in names:
names.append(i)
print(names)
names = []
for i in Names:
name=i.lower()
names.append(name)
for l in names:
if i not in names:
names.append(i)
print(names)
2021-12-03
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
num=0
for key in d.keys():
num+=1
print(num)
num=0
for key in d.keys():
num+=1
print(num)
2021-12-02
建議isdisjoint這段描述可以說(shuō)是 判斷兩個(gè)集合是否沒(méi)有交集,和函數(shù)的實(shí)際含義保持一致,讀者可能會(huì)混淆 哈哈 比如我
2021-11-28