test_string = "Hello123" if contains_number(test_string): print("字符串包含数字") else: print("字符串不包含数字")代码解析:contains_number(s) 是一个函数,它接受一个字符串 s 作为参数。 any(char.isdigit() for char in s) 使用生成器表达式遍历字符串中的每个字符 char,并检查它是否是数字(使用...
erDiagram NUMBER ||--o| TARGET : 包含 flowchart TD start --> input_number input_number --> convert_to_string convert_to_string --> check_contains check_contains -->| 包含 | contains_true check_contains -->| 不包含 | contains_false contains_true --> output_true contains_false --> ...
['__add__', '__class__', '__contains__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '_...
whitespace -- a string containing all characters considered whitespace lowercase -- a string containing all characters considered lowercase letters uppercase -- a string containing all characters considered uppercase letters letters -- a string containing all characters considered letters digits -- a stri...
# main.pyimportosimportstring a=102content ="this is a very long string contains: %s, %s"%(string.ascii_lowercase, string.ascii_uppercase)ifnot(len(content)==0):if( (1+2) % (4+3) ) ==1andaisnotNone:pass 使用flake8 检查后得到的结果将会是这样: ...
print('site contains jb51') 输出结果:site contains jb51 方法2:使用find函数实现contains的功能 s = "This be a string" if s.find("is") == -1: #找到时返回第一次出现的位置 ; str.find(str, beg=0, end=len(string)),可以指定查找范围 ...
ascii_lowercasereturn''.join(random.choice(chars)for_inrange(size))defstring_num_generator(size):chars=string.ascii_lowercase+string.digitsreturn''.join(random.choice(chars)for_inrange(size))# Random String test=string_generator(10)print(test)# Random String and Number test=string_num_generator...
Pad a numeric string with zeros on the left, to fill a field of the given width. The string is never truncated. """ pass def __add__(self, *args, **kwargs): # real signature unknown """ Return self+value. """ pass def __contains__(self, *args, **kwargs): # real signatu...
str.format(format_string, *args, **kwargs) Perform a string formatting operation. The format_string argument can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument...
Python Exercises, Practice and Solution: Write a Python program to match a string that contains only upper and lowercase letters, numbers, and underscores.