MyString[a:b]给出一个从索引a到(b - 1)的子字符串。 Is there a way to substring a string in Python, to get a new string from the 3rd character to the end of the string? Maybe likemyString[2:end]? 是的,如果将名称end赋值或绑定到常量singletonNone,这实际上是可行的: 1 2 3 4 >>...
* Allocates a new {@code String} that contains characters from a subarray * of the character array argument. The {@code offset} argument is the * index of the first character of the subarray and the {@code count} * argument specifies the length of the subarray. The contents of the * ...
① public String substring(int beginIndex) 这个方法截取的字符串是从索引beginIndex开始的,到整个字符串的末尾,例如:字符串String s = "abcdef"; 调用s.substring(2)表示从字符串的索引2开始截取到整个字符串结束,截取的字符串为cdef ② public String substring(int beginIndex, int endIndex) 这个方法截取的字...
The string index where the slice is to begin. If negative, this argument specifies a position measured from the end of the string. That is, -1 indicates the last character, -2 indicates the second from last character, and so on. 指定想要得到字符串的开始的位置,即索引。 end The string in...
string.slice(start,end) Arguments start The string index where the slice is to begin. If negative, this argument specifies a position measured from the end of the string. That is, -1 indicates the last character, -2 indicates the second from last character, and so on. ...
* substring begins with the character at the specified index and * extends to the end of this string. * Examples: * <blockquote> * "unhappy".substring(2) returns "happy" * "Harbison".substring(3) returns "bison" * "emptiness".substring(9) returns "" (an empty string) * </block...
Returns A substring from the given string. The substring starts at startingIndex (zero-based) character position and continues to the end of the string or length characters if specified.Examples substring("123456", 1) // 23456 substring("123456", 2, 2) // 34 substring("ABCD", 0, 2) /...
("admin"); System.out.println("string = " + str); // prints substring from index 3 System.out.println("substring is = " + str.substring(3)); /* prints substring from index 1 to 4 excluding character at 4th index */ System.out.println("substring is = " + str.substring(1, 4)...
endIndex(optional) - the ending index substring() Return Value Thesubstring()method returns a substring from the given string. The substring begins with the character at thestartIndexand extends to the character at indexendIndex - 1 If theendIndexis not passed, the substring begins with the ...
接着看String.substring(int beginIndex, int endIndex)方法: /** * Returns a new string that is a substring of this string. The * substring begins at the specified beginIndex and * extends to the character at index endIndex - 1. * Thus the length of the substring...