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) ...
1. Number(数字) Python 的数字类型有 int 整型、long 长整型、float 浮点数、complex 复数、以及布尔值(0 和 1)。 Python 的数字类型有 int 整型、long 长整型、float 浮点数、complex 复数、以及布尔值(0 和 1)。 2. String(字符串) 字符串是Python中最常用的数据类型,我们可以使用单引号(’’)或者 双...
为了排版方便或者是输出文件命名整洁,通常需要给数字前面补0来做统一。Python中有一个zfill函数用来给字符串前面补0,非常有用,这个zfill看起来也就是zero fill的缩写吧,看一下如何使用:n = "123"s = n.zfill(5)assert s == '00123'zfill也可以给负数补0:n = '-123's = n.zfill(5)assert s == '-...
letters -- a string containing all characters considered letters digits -- a string containing all characters considered decimal digits hexdigits -- a string containing all characters considered hexadecimal digits octdigits -- a string containing all characters considered octal digits punctuation -- a s...
Return a copy of the string with only its first character capitalized. For 8-bit strings, this method is locale-dependent. str.center(width[, fillchar]) Return centered in a string of length width. Padding is done using the specified fillchar (default is a space). ...
fill((148, 146, 255)) 上述代码用RGB颜色值(148, 146, 255)为游戏窗口生成了一个背景色,并自动显示出来,效果如下: 接下来定义一个文本文件,把游戏场景中各种物体的位置用字母记录下来: 然后在程序中编写代码来读取文件,在相应字符的位置处生成物体,并将生成的物体全部加入到列表objs中。 最后在draw()函数中...
fill(angles, stats, alpha=0.25) ax.set_thetagrids(angles * 180/np.pi, labels) ax.set_title("Radar Chart") ax.grid(True) 这些是雷达图的类型: 简单的雷达图 这是雷达图的基本类型。它由从中心点绘制的几个半径组成。 带标记的雷达图 在这些中,蜘蛛图上的每个数据点都被标记。 填充雷达图 在...
Specifies the kind of interpolation as a string ('linear', 'nearest', 'zero', 'slinear', 'quadratic', 'cubic','previous', 'next', where 'zero', 'slinear', 'quadratic' and 'cubic' refer to a spline interpolation of zeroth, first, second or third order; 'previous' and 'next' simp...
When your Python application uses a class in Tkinter, e.g., to create a widget, the tkinter module first assembles a Tcl/Tk command string. It passes that Tcl command string to an internal _tkinter binary module, which then calls the Tcl interpreter to evaluate it. The Tcl interpreter wi...
This f-string hastwo replacement fields: >>>print(f"My name is{full_name}which is{len(full_name)}characters long.")My name is Trey Hunner which is 11 characters long. This f-string has one replacement field which uses aformat specification(note the:): ...