Python tách chuỗi được phân tách bằng dấu phẩy thành mảng
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Đối tượng Stringstream có thể được khởi tạo bằng cách sử dụng đối tượng chuỗi, nó sẽ tự động mã hóa các chuỗi trên dấu cách. Cũng giống như “cin” luồng stringstream cho phép bạn đọc một chuỗi dưới dạng một luồng từ. Ngoài ra, chúng ta cũng có thể sử dụng chức năng getline để mã hóa chuỗi trên bất kỳ dấu phân cách ký tự đơn nào Some of the Most Common used functions of StringStream. clear() — flushes the stream str() — converts a stream of words into a C++ string object. operator << — pushes a string object into the stream. operator >> — extracts a word from the stream. Đoạn mã dưới đây chứng minh điều đó. C++Output: Hi
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!9geeks for geeks0 geeks for geeks1 geeks for geeks2
geeks for geeks3 geeks for geeks4 geeks for geeks5 Output: Geeks
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Geeks7Output: Geeks
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Geeks8geeks for geeks8 Output: Geeks
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Geeks8// expregexp is the delimiting regular expression; // limit is the number of returned strings public String[] split(String regexp, int limit); // We can call split() without limit also public String[] split(String regexp)0 Output: Geeks
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Geeks8Some of the Most Common used functions of StringStream. clear() — flushes the stream str() — converts a stream of words into a C++ string object. operator << — pushes a string object into the stream. operator >> — extracts a word from the stream.8 // expregexp is the delimiting regular expression; // limit is the number of returned strings public String[] split(String regexp, int limit); // We can call split() without limit also public String[] split(String regexp)3 Output : How
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Geeks8Output: Hi
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!4Output: Hi
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// expregexp is the delimiting regular expression; // limit is the number of returned strings public String[] split(String regexp, int limit); // We can call split() without limit also public String[] split(String regexp)9 Geeks for-Geeks Geeks for Geeks0 geeks for geeks4 Geeks for-Geeks Geeks for Geeks2 Output: Geeks
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Geeks9 Geeks for-Geeks Geeks for Geeks4 Output: Geeks
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Geeks7Output: Geeks
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Geeks8geeks for geeks8 Output: Geeks
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Geeks8// expregexp is the delimiting regular expression; // limit is the number of returned strings public String[] split(String regexp, int limit); // We can call split() without limit also public String[] split(String regexp)0 Output: Geeks
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Geeks8Some of the Most Common used functions of StringStream. clear() — flushes the stream str() — converts a stream of words into a C++ string object. operator << — pushes a string object into the stream. operator >> — extracts a word from the stream.8 // regexp is the delimiting regular expression; // limit is limit the number of splits to be made str.split(regexp = "", limit = string.count(str))2 Output : How
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do!2// regexp is the delimiting regular expression; // limit is limit the number of splits to be made str.split(regexp = "", limit = string.count(str))4 Output : How
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do!2_______12_______5Output: Geeks
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Geeks8Output: Hi
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!4Output: Hi
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Output: Geeks
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Geeks5 Output: Geeks
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Geeks01Output: Geeks
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Geeks5 Output: Geeks
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Geeks03Output: Geeks
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Geeks9 Output: Geeks
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Geeks10Note: The main disadvantage of strtok() is that it only works for C style strings.
Therefore we need to explicitly convert C++ string into a char array.
Many programmers are unaware that C++ has two additional APIs which are more elegant
and works with C++ string. 2Output: Geeks
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Geeks8Output: Geeks
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Geeks13_______8_______14Note: The main disadvantage of strtok() is that it only works for C style strings.
Therefore we need to explicitly convert C++ string into a char array.
Many programmers are unaware that C++ has two additional APIs which are more elegant
and works with C++ string. 2Output: Geeks
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Geeks8Output: Geeks
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Geeks17Output: Geeks
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Geeks8Output: Geeks
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Geeks19Output: Geeks
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Geeks8Output: Geeks
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Geeks21Output: Geeks
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Geeks8Output: Geeks
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Geeks24Some of the Most Common used functions of StringStream. clear() — flushes the stream str() — converts a stream of words into a C++ string object. operator << — pushes a string object into the stream. operator >> — extracts a word from the stream.1 Output: Geeks
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Geeks8Output: Geeks
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Geeks21Output: Geeks
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Geeks8Output: Hi
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!6 Output: Hi
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!7Output: Hi
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!4Output : How
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do!Phương pháp 2. Sử dụng API find() và substr() của C++Điều kiện tiên quyết. tìm chức năng và substr() Phương pháp này mạnh mẽ hơn và có thể phân tích một chuỗi bằng bất kỳ dấu phân cách nào, không chỉ dấu cách (mặc dù hành vi mặc định là phân tách trên dấu cách. ) Logic khá đơn giản để hiểu từ mã bên dưới C++Output: Hi
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!9geeks for geeks0 geeks for geeks1 geeks for geeks2
geeks for geeks4 Output: Geeks
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Geeks37_______8_______38Output: Geeks
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Geeks39Output: Geeks
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Geeks7Output: Geeks
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Geeks8Output: Geeks
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Geeks5 Output: Geeks
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Geeks43Output: Geeks
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Geeks8Output: Geeks
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Geeks45 Output: Geeks
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Geeks7Output : How
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do!2_______8_______48Output : How
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do!2______8_______50Output : How
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Geeks8Output: Hi
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!4_______0_______8 Output: Geeks
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Geeks56Output: Hi
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!4Output: Geeks
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Geeks5 Output: Geeks
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Geeks01Output: Geeks
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Geeks5 Output: Geeks
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Geeks03Output: Geeks
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Geeks9 Output: Geeks
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Geeks05Output: Geeks
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Geeks06Output: Geeks
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Geeks7Output: Geeks
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Geeks8Output: Geeks
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Geeks67Output: Geeks
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Geeks8Output: Geeks
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Geeks09Output: Geeks
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Geeks70Note: The main disadvantage of strtok() is that it only works for C style strings.
Therefore we need to explicitly convert C++ string into a char array.
Many programmers are unaware that C++ has two additional APIs which are more elegant
and works with C++ string. 2Output: Geeks
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Geeks8Output: Geeks
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Geeks73Output: Geeks
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Geeks74Some of the Most Common used functions of StringStream. clear() — flushes the stream str() — converts a stream of words into a C++ string object. operator << — pushes a string object into the stream. operator >> — extracts a word from the stream.1 Output: Geeks
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Geeks8Output: Geeks
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Geeks21
Output: Geeks
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Geeks8Output: Hi
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!6 Output: Hi
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!7Output: Hi
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!4Output: Hi
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!Phương pháp 3. Sử dụng chuỗi tạm thời Nếu bạn được cung cấp rằng độ dài của dấu phân cách là 1, thì bạn chỉ cần sử dụng chuỗi tạm thời để tách chuỗi. Điều này sẽ tiết kiệm thời gian hoạt động của chức năng trong trường hợp của phương pháp 2 |
