1.字符串 用引号括起来的就是字符串，包括单双引号 name = "what is your name?" print(name.title()) //title函数输出字符串首字母大写 print(name.upper()) //全部大写 print(name.lower()) //全部小写
2.合并（链接）字符串
first_name = "bigbeat" last_name ="wu" full_name = first_name + "." +last_name //合并在一个变量 print(full_name) print("Hello " + full_name.title() + '!') message = "Hello " + full_name.title() + '!' //也称拼接在一个变量 print(message)
3.用制表符或换行符来添加空白
print("\tbigbeat.wu") // \t制表符：空格；\n换行符 print("my name :\n\tbigbeat.wu")
4.删除空格函数rstrip()：字符串最末尾的空格；lstrip()：字符串最开始的空格
irst_name = " bigbeat" last_name = "wu " full_name = first_name + '.' + last_name + '!' print(full_name) print(full_name.rstrip()) //并不是把其中某个字符串的末尾空格删掉，而是整个字符串的最末尾空格删掉 print(full_name.lstrip()) //把整个字符串的最开始的空格删掉 first_name = first_name.lstrip() print(first_name)
5.字符串尽量用双引号 6.str()函数：将非字符串值表示字符串
age = 23 message = "Happy " + str(age) + "rd Birthday!" //将int 转化为字符串 print(message)
