Theupper()method returns a new string where all the characters are converted to uppercase. Keep in mind that this operation does not modify the original string; instead, it creates a new string with the uppercase characters. If you want to modify the original string in-place, you can reass...
print('*%abc%'.strip('*%')) 15.upper()方法 ''' upper()方法: Return a copy of the string converted to uppercase. 将字符串中的所有字符转换成大写字母,并返回一个字符串副本 同lower()方法对应 ''' print('abcdaAKJFA'.upper())
复制 usestd::ffi::{CStr,CString};usestd::os::raw::c_char;#[no_mangle]pub extern"C"fn to_uppercase(s:*const c_char)->*mut c_char {// 将 *const c_char 转成 &CStrlet s=unsafe { CStr::from_ptr(s)};// 将 &CStr 转成 &str// 然后调用 to_uppercase 转成大写,得到 Stringle...
upper(...) S.upper() -> str Return a copy of S converted to uppercase. 返回值字母小写转换为大写,小转大 实例: a = “start” a.upper() START (5)str.swapcase() Help on method_descriptor: swapcase(...) S.swapcase() -> str Return a copy of S with uppercase characters converted ...
我们可以看到上面还可以转换成其他格式,比如 To data(日期类型)、To text(文本类型) 、To nul1(空值)、 To uppercase(大写)等。转换成功。为后续数据分析做准备,我们依次把baths、sq__ft、price、latitude、longitude这几行按上面方法转换成数值类型。
def upper(self): # real signature unknown; restored from __doc__ """ S.upper() -> str Return a copy of S converted to uppercase. """ return "" 用法:返回字符串的副本,其中所有小写字母都转换为大写字母。 def lower(self): # real signature unknown; restored from __doc__ ...
def upper(self, *args, **kwargs): # real signature unknown """ Return a copy of the string converted to uppercase. """ pass def zfill(self, *args, **kwargs): # real signature unknown """ Pad a numeric string with zeros on the left, to fill a field of the given width. ...
# country column to upper case countries_df['Country_upper'] = countries_df['Country'].str.upper() # country column to lower case countries_df['CountryCode_lower']=countries_df['CountryCode'].str.lower() # finding length of characters in the country column ...
uppercased: HELLOPYTHON!字符串数据处理 2.DRY（不要重复自己）DRY（不要重复自己）的原理是每个程序员都应该实践的最基本的规则之一。其含义很简单：如果发现代码中有任何重复，那么就表明需要进行一些重构，以实现最大程度地减少重复代码，或在可能的情况下完全删除任何重复信号。以下示例通过应用DRY原理展示了一些...
firstDoorNum= int(input("Choose a door to open:"))#assert —— Python的断言就是检测一个条件,如果条件为真,它什么都不做;反之它触发一个带可选错误信息的AssertionErrorassert0<= firstDoorNum <=2breakexcept:print("Door number must be between {} and {} :".format(0,2))#主持人查看另外两个...