python基础之字符串

title()方法

name = 'ada lovelace'
print(name.title())

upper()和lower()方法

name = "Ada Lovelace"
print(name.upper())
print(name.lower())

拼接字符串方法

first_name = 'ada'
last_name = "lovelace"
full_name = first_name + " " + last_name
message = "Hello, " + full_name.title() + '!'
print(message)

制表符和换行符

print('\tpython')
print('\npython')
print('python')

删除空白符：

rstrip():删除尾部的空白
lstrip()：删除开头的空白
strip():删除首尾两端的空白

数字拼接

age = 23
message = "Happy" + age + "Birthday"

这意味着不同类型是无法拼接的,修改类型如下

age = 23
message = "Happy " + str(age) + " Birthday"
print(message)

注释

#我不会被打印，我只是注释
print('hello world')