不可变对象:Number ,String , Tuple,bool 可变对象: List , Set , Dictionary是可以改变内部的元素 这里复制参考博客中的几个例子: 先看例子: def changestr (str): str = "inside" print "这是function中 , 值为:",str mystr = "outside" changestr(mystr) print "这是函数外边 , 值为:",mystr ...
python实现swap python中的swap 在windows进入命令行或者linux进入终端,敲击进入相应的编译环境的时候,输入 import this 就会出来python的语法要求。 1)变量的交换 (swapping variables) a=1 b=2 tmp=a a=b b=tmp 可以换成 a,b=b,a 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 2)字符串格式化 (string f...
"""upper(s) -> string Return a copy of the string s converted to uppercase. """ return s.upper() # Swap lower case letters and UPPER CASE def swapcase(s): """swapcase(s) -> string Return a copy of the string s with upper case characters converted to lowercase and vice versa. ...
54 55 """ 56 return (sep or ' ').join(x.capitalize() for x in s.split(sep)) 57 58 59 # Construct a translation string 60 _idmapL = None 61 def maketrans(fromstr, tostr): 62 """maketrans(frm, to) -> string 63 64 Return a translation table (a string of 256 bytes long) ...
string [striŋ] 字符串类型 float [fləut] 单精度浮点类型 type [taip] 类型 bool ['bu:li:ən]布尔类型,真假 True [tru:] 真,正确的(成立的) False [fɔ:ls] 假,错误的(不成立的) encode [ɪnˈkəʊd] 编码 decode [ˌdi:ˈkəʊd] 解码 ...
9、swap:互换 10、case:情形 11、path:路径 12、new:新的\新建 13、project:项目 14、test:测试 15、file:文件 16、data:数据 四、去除/查询/计数 1、strip:去除 2、index:索引 3、find:查找 4、count:计数 5、start:开始 6、end:结束 7、chars:字符 ...
In [27]: s.index? Type: builtin_function_or_method String Form:<built-in method index of str object at 0x7f8efbad4ca8> Docstring: S.index(sub [,start [,end]]) -> int Like S.find() but raise ValueError when the substring is not found. ...
# Python has a print function print("I'm Python. Nice to meet you!") # => I'm Python. Nice to meet you! # By default the print function also prints out a newline at the end. # Use the optional argument end to change the end string. ...
gluPartialDisk()、gluDeleteQuadric()非均匀有理B样条绘制工具：主要用来定义和绘制Nurbs曲线和曲面，包括gluNewNurbsRenderer()、gluNurbsCurve()、gluBeginSurface()、gluEndSurface()、gluBeginCurve()、gluNurbsProperty()错误反馈工具：获取出错信息的字符串gluErrorString()三、OpenGL 工具库 GLUT包含大约30多个函数...
Note: If you want to convert all characters in a string to lowercase, use the Python function lower(). And if you want to swap between lowercase and uppercase, use the swapcase() function in Python. The upper() Function in Python: Syntax string.upper() stringName.upper() The upper()...