// return this.largeString.substring(0,2) + "";//JDK6下的解决方法,不会出现out of memory // return new String(this.largeString.substring(0, 2));/JDK6下的解决方法,不会出现out of memory } public static void main(String[] args)
java截取字符串substring java截取字符串substring 直接上代码: beginIndex:开始点,最开始为0 endIndex:终结点,可不填...SQL之操作字符串函数CONCAT、SUBSTR、SUBSTRING、SUBSTRING_INDEX、LEFT、RIGHT 以MySQL为例 CONCAT() table - str1 str2 1 my sql SUBSTR()//SUBSTRING() SUBSTR(str,pos)//SUBSTR(str ...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.nextLine(); System.out.println(s.substring(0, 2)); System.out.println(s.substring(2)); sc.close(); } } 前端截取字符串:JS截取字符串之substrin...
string userid = Session["userid"].ToString();if (userid.length > 13){string dir1 = work_id.Substring(0,8) + "/";string dir2 = work_id.Substring(8,5) + "/";string dir3 = work_id.Substring(13, (work_id.Length - 13)) + "/";string dir = dir1 + dir2 + di...
应该是你截取字符串超限了 如:"abc".substring(0, 10); 也会报你的错误，原因是，字符串abc的长度是3，而截取10个字符，是不对的，所以报错 字符
Java String substring() Learn to get a substring from from givenStringin Java between the two indices. Note thatStringischaracter arraybased type and the first character of String is at0index. If we store aString“Hello World” in Java, then it creates a character array of size 11 in the...
2.1k 0 3 In JavaScript, several string manipulation methods are commonly used, and each serves a different purpose. Let's go over the differences with examples as follows. split() Split string operations will split a string into an array of substrings based on a specified delimiter. co...
substring(0, str.length()-1):This excludes last character as thelength() methodreturns the length of the string and when we providestr.length()-1as the endIndex, it excludes last character. publicclassJavaExample{publicstaticvoidmain(Stringargs[]){Stringstr=newString("Pasta");System.out.prin...
Accessing Java Key Store using .NET Accessing Outlook Calendar in C# Application Accessing PowerShell Variable in C# code Accessing rows/columns in MultiDimensional Arrays Accessing the first object in an ICollection Accessing the private method through an instance in a static method Accurate Integer par...
SELECT jl.* FROM jl WHERE jl.id = (SELECT SUBSTRING((SELECT user.jlid FROM user WHERE user.id=1), 1, 1) ) OR jl.id = (SELECT SUBSTRING((SELECT user.jlid FROM user WHERE user.id=1), 3, 1) ) LIMIT 0, 30;解释 首先，通过子查询查询`user`表中id为1的`jlid`字段值...