多列代码块进行技术配置对比: # 方案A: 使用内置字符串方法defcompare_case_sensitive(str1,str2):returnstr1==str2# 方案B: 使用内置方法忽略大小写defcompare_case_insensitive(str1,str2):returnstr1.lower()==str2.lower() 1. 2. 3. 4. 5. 6. 7.
defcase_insensitive_compare(str1,str2):returnstr1.lower()==str2.lower()# 示例比较ifcase_insensitive_compare("Alice","alice"):print("两个名字是相同的(忽略大小写)")else:print("两个名字是不同的") 1. 2. 3. 4. 5. 6. 7. 8. 在这个简单的函数case_insensitive_compare中,我们将两个字符...
Learn how to compare two strings in Python and understand their advantages and drawbacks for effective string handling.
The symbol for the ohm (Ω) unit of electrical resistance is normalized to the Greek uppercase omega. They are visually identical, but they compare unequal so it is essential to normalize to avoid surprises: >>> from unicodedata import normalize, name >>> ohm = '\u2126' >>> name(ohm)...
cat(args.infile, args.case_insensitive, grep(args.pattern, args.case_insensitive, count(args.pattern))) 分析代码之前,我们先运行一下,和grep进行比较: $ time python3.5grep.py -i love pg2600.txt love677python3.5grep.py -i love pg2600.txt0.09s user0.01s system97% cpu0.097total ...
"" return ( (lowerkey, keyval[1]) for (lowerkey, keyval) in self._store.items() ) def __eq__(self, other): if isinstance(other, Mapping): other = CaseInsensitiveDict(other) else: return NotImplemented # Compare insensitively return dict(self.lower_items()) == dict(other.lower_...
Even though the first literal comes with a prefix, it has no effect on the outcome, so both strings compare as equal.To observe the real difference between raw and standard string literals in Python, consider a different example depicting a date formatted as a string:...
/* Case insensitive string compare, to avoid any dependencies on particular C RTL implementations */ -static int strcasecmp (char *string1, char *string2) -{ –int first, second; –do { –first = tolower(*string1); –second = tolower(*string2); ...
a = float('inf') b = float('nan') c = float('-iNf') # These strings are case-insensitive d = float('nan')Output:>>> a inf >>> b nan >>> c -inf >>> float('some_other_string') ValueError: could not convert string to float: some_other_string >>> a == -c # inf==...
compare comparison comparison-operators compatibility compilation compiler-errors compiler-flags compiler-optimization complex-numbers complexity-theory composite-primary-key composition compound-assignment compression computation-graph computational-geometry compute-shader computer-science computer-vision concat ...