start(Start) --> input(Enter a string) input --> cond{String is not empty?} cond -- Yes --> output1[Print "The string is not empty."] cond -- No --> output2[Print "The string is empty."] 在上面的流程图中,我们首先输入一个字符串,然后判断该字符串是否不为空,根据判断结果输出相...
1. 使用if语句判断字符串不为空 defis_string_not_empty(string):ifstring:returnTrueelse:returnFalse 1. 2. 3. 4. 5. 上述代码使用if语句来判断字符串是否为空。如果字符串不为空,即字符串长度大于0,则返回True;否则,返回False。 2. 使用len()函数判断字符串不为空 defis_string_not_empty(string):if...
for 循环可以实现迭代的过程，但是，并非所有对象都可以用于 for 循环，例如，上例中若将字符串“abc”换成任意整型数字，则会报错： 'int' object is not iterable .这句报错中的单词“iterable”指的是“可迭代的”，即 int 类型不是可迭代的。而字符串（string）类型是可迭代的，同样地，列表、元组、字典等...
print("The string is not empty") else: print("The string is empty") ``` 在这个例子中,如果`text`是空字符串,那么条件`if text`的结果将是`False`,因此会执行`else`语句,输出"The string is empty"。 另外需要注意的是,虽然空字符串被认为是`True`,但它在布尔运算中的优先级是低于其他非空字符串...
non_empty_string ='Hello, World!'ifnon_empty_string:print("This will be executed.")else:print("This won't be executed.") 非空列表、非空字典、非空集合等:如果容器类型中包含元素,被视为真。 non_empty_list = [1,2,3] non_empty_dict = {'key':'value'} ...
Astringis a Python data type that’s used to represent a piece of text. It’s written between quotes, either double quotes or single quotes and can be as short as zero characters, or empty string, or as long as you wish. Strings can beconcatenatedto build longer strings using the plus...
| separator is not found, return two empty strings and S. | | rsplit(...) | S.rsplit(sep=None, maxsplit=-1) -> list of strings | | Return a list of the words in S, using sep as the | delimiter string, starting at the end of the string and ...
If the separator is not found, returns a 3-tuple containing two empty strings and the original string. """ pass def rsplit(self, *args, **kwargs): # real signature unknown """ Return a list of the words in the string, using sep as the delimiter string. ...
传统的字符串(Legacy String) 其对应PyUnicodeObject结构体,传统的字符串对象会其中会包含两种特殊状态not ready和ready。 传统的字符串可以通过PyUnicode_FromUnicode为分配PyUnicodeObject结构体分配内存并封装C级别的unicode字符串。 实际的字符串数据最初位于wstr块中,并使用_PyUnicode_Ready函数复制到data的块中。
If sep is not specified or is None, any whitespace string is a separator and empty strings are removed from the result. (END) In [12]: s1.spli s1.split s1.splitlines In [12]: s1.split() Out[12]: ['xie', 'xiao', 'jun'] In [16]: s1.split("",2) --- ValueError Trace...