字符串拼接+:

first="hello" #將hello賦值給變量first
second="world" #將world賦值給變量second
full=first+“ ”+second #拼接first 空格 second并復(fù)制給full
print(full) #打印full完整的值
--------------------------

hello world

--------------------------

示例1：

first="hello"
second="world"
full=first+" "+second
print(full)
print("Baby,"+full.title())

?

拼接后都存儲(chǔ)在一個(gè)變量中：

first="hello"

second="world"

full=first+" "+second

msg="Baby,"+full.title()+"!"

print(msg)

-------------------------------------

制表符\t：不使用表格的情況下在垂直方向按列對(duì)齊文本。

換行符\n

示例：

print("Hello")
print("\tHello")
print("HelloWorld")
print("Hello\nWorld")
print("Lauguages:\n\tPython\n\tJAVA\n\tC++\n\tRuby")

------------------------------------------------------------------

Hello
?? ?Hello
HelloWorld
Hello
World
Lauguages:
?? ?Python
?? ?JAVA
?? ?C++
?? ?Ruby

------------------------------------------------------------------

刪除字符串末尾空白方法:rstrip()

刪除字符串開頭空白方法:lstrip()

同時(shí)刪除字符串開頭末尾空白方法:trip()

示例

first=input("請(qǐng)輸入你的名字:")
first=first.rstrip() #直接調(diào)用的話只能暫時(shí)刪除空白，下一次訪問first的值時(shí)依然會(huì)有空白，要永久刪除這個(gè)字符的空符號(hào)，必須將刪除操作的結(jié)果再存回到變量中

first=first.lstrip()

first=first.strip()

print(first)

------------------------------------------------------------------

name=input("請(qǐng)輸入你的名字：")
msg="hello"+" "+name.title()+","+"would you like to learn some Python today?"
print(msg)

作業(yè)：

-------------------------------------------------------------------------------------------------------

name = input("請(qǐng)輸入你的名字：")
msg = "hello"+" "+name.title()+","+"would you like to learn some Python today?"
print(msg)
name = name.title()
print(name)
name = name.upper()
print(name)
name = name.lower()
print(name)

-------------------------------------------------------------------------------------------------------

請(qǐng)輸入你的名字：sandy shirley
hello Sandy Shirley,would you like to learn some Python today?
Sandy Shirley
SANDY SHIRLEY
sandy shirley

-------------------------------------------------------------------------------------------------------

?

轉(zhuǎn)載于:https://www.cnblogs.com/sandy32399/p/10535942.html

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