如何在C/C++,Python和Java中分割字符串()

用一些定界符分割字符串是非常常见的任务。例如, 我们用逗号分隔文件中的项目列表, 并且希望将单个项目放在数组中。
几乎所有的编程语言, 都提供通过某些定界符分割字符串的功能。
在C/C++中:

//Splits str[] according to given delimiters. //and returns next token. It needs to be called //in a loop to get all tokens. It returns NULL //when there are no more tokens. char * strtok(char str[], const char *delims);

//A C/C++ program for splitting a string //using strtok() #include < stdio.h> #include < string.h> int main() { char str[] = "Geeks-for-Geeks" ; //Returns first token char *token = strtok (str, "-" ); //Keep printing tokens while one of the //delimiters present in str[]. while (token != NULL) { printf ( "%s\n" , token); token = strtok (NULL, "-" ); }return 0; }

【如何在C/C++,Python和Java中分割字符串()】输出如下:
Geeks for Geeks

在Java中:
在Java中, split()是String类中的方法。
//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)

//A Java program for splitting a string //using split() import java.io.*; public class Test { public static void main(String args[]) { String Str = new String( "Geeks-for-Geeks" ); //Split above string in at-most two strings for (String val: Str.split( "-" , 2 )) System.out.println(val); System.out.println( "" ); //Splits Str into all possible tokens for (String val: Str.split( "-" )) System.out.println(val); } }

输出如下:
Geeks for-GeeksGeeks for Geeks

在Python中:
//regexp is the delimiting regular expression; //limit is limit the number of splits to be made str.split(regexp = "", limit = string.count(str))

line = "Geek1 \nGeek2 \nGeek3" ; print line.split() print line.split( ' ' , 1 )

输出如下:
['Geek1', 'Geek2', 'Geek3'] ['Geek1', '\nGeek2 \nGeek3']

本文作者:阿蒂亚(Aditya Chatterjee)。如果发现任何不正确的地方, 或者想分享有关上述主题的更多信息, 请发表评论。

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