"iflen(str1)>0:print("The string is not empty.")else:print("The string is empty.") 1. 2. 3. 4. 5. 6. 在上面的代码中,我们首先定义了一个字符串变量str1,并通过if语句判断该字符串的长度是否大于0。如果字符串不为空,就输出"The string is not empty.“;如果字符串为空,就输出"The stri...
如果字符串的长度为0,则输出"String is empty";否则,输出"String is not empty"。 这种方法的优点是简单直观,容易理解和使用。然而,它的缺点是需要额外的代码行数,并且需要使用len()函数来获取字符串的长度,稍微有些繁琐。 2. 使用not运算符判断字符串是否为空 另一种方法是使用not运算符来判断字符串是否为空...
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...
类,判断是否为空的方法参数是字符序列类,也就是String类型 StringUtils.isEmpty(Object str); //而org.springframework.util包下的参数是Object...类,也就是不仅仅能判断String类型,还能判断其他类型,比如Long等类型。...Object str)源码:public static boolean isEmpty(Object str) { return (str == null ||...
使用f-string(f +{})进行格式化输出,通过在字符串前加上f或F前缀,然后在字符串中使用{}表示占位符,并在{}中直接引用变量。 name ="scott"age =18# 格式化输出语法二 : f + {}print(f"My name is{name}; My age is{age}")# My name is scott; My age is 18 ...
This is only possible when the string was created with a legacy API and _PyUnicode_Ready() has not been called yet. */ PyUnicode_WCHAR_KIND = 0, /* Return values of the PyUnicode_KIND() macro: */ PyUnicode_1BYTE_KIND = 1, PyUnicode_2BYTE_KIND = 2, PyUnicode_4BYTE_KIND = 4...
If sep is not specified or is None, a different splitting algorithm is applied: runs of consecutive whitespace are regarded as a single separator, and the result will contain no empty strings at the start or end if the string has leading or trailing whitespace. Consequently, splitting an empty...
pdb.run("fun(1, 0)") # (1) > <string>(1)<module>()->None (Pdb) n ZeroDivisionError: division by zero > <string>(1)<module>()->None (Pdb) 说明函数中抛出了 ZeroDivisionError 异常。继续输入 n 直到调试结束,返回到 >>> 状态。 > <string>(1)<module>()->None (Pdb) n --Return...
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...
```# Python script to generate random textimport randomimport stringdef generate_random_text(length):letters = string.ascii_letters + string.digits + string.punctuationrandom_text = ''.join(random.choice(letters) for i in range(le...