c Remove all characters after a string

Let's talk about the idea first:

Get the last one within this string. location, which is the index.

Then get the 0th character of the string to this position, which is the target string you want to get.

Program implementation: string ls old ="" ,ls_new = "" ;

int li_index = 0 ;Variable declarations.

ls_old = "" ;Assign a raw string value to a variable.

li_index = ls_".");Obtain. location.

ls new = ls , li index ) to get the target string.

This ls new is the stuff to get.

string s = "";

s = , 1);

Just the integer part.

int v = (int);

s = ;And finally, is a character.

If you just want to simply and brutally get rid of the last two characters (whatever it is), you can use truncating:

string s="";

s=,;If the number of truncation digits is indefinite, but the format is required, you can do it as on the first floor.

string demo3 = 。

In computer and telecommunications technology, a character is the basic information of a glyph, glyph-like unit, or symbol of a unit.

Characters are letters, numbers, words, and symbols used in computers, including , a, b, c, ! #￥%…Wait a minute.

In ASCII encoding, one alphabetic character is stored in 1 byte. In GB 2312 encoding or GBK encoding, 2 bytes are required to store a Chinese character character.

A character is an abstract entity that can be represented using a number of different character schemes or pages. For example, Unicode UTF-16 encoding represents characters as a sequence of 16-bit integers, while Unicode UTF-8 encoding represents the same character as an 8-bit sequence of bytes. Microsoft's common language runtime uses Unicode UTF-16 to represent characters.

Applications targeting the Microsoft Common Language Runtime use encoding to map character representations from native character schemes to other schemas. The application uses decoding to map characters from a non-native scenario to a native scenario.

Computers and communication devices use character encoding to express characters. It means that a character will be assigned to something. Traditionally, it represents a sequence of integer bits, so it can be transmitted over a network and is also easy to store.

Two commonly used examples are ASCII and UTF-8 for Unicode. According to Google, UTF-8 is currently the most commonly used encoding method for web pages. In contrast to most character encodings, which correspond characters to numbers or strings of bits, Morse ciphers use sequences of electronic pulses of varying lengths to represent characters.

string strs = "ksdlfjskdlfjdks";

1.In cases where the previous character is not repeated, trimstart('k'Method.

string demo1 = 'k');

2.Interception can also be used.

string demo2 = , 1);

3.It can also be used directly and simply.

string demo3 = ;

Is it in Excel? You can use the function to enter it in the blank ** next to the string"=left(string unit number, the number of letters you want), everything else is done according to this method.

Use. substring, e.g. str="aaabbbccc"; str=,;

The meaning of the two parameters in the substring is the first parameter: the start position, and the second parameter, how many characters after the start position.

, "The first of a few letters you said");

I don't know what you mean by efficient purging, and I don't know what specific rules you have for this string, such as splitting with split, or replacing with a regular rule.

Determine what the last character is, replace it with empty if it is a comma, and do nothing if it is not.

The upstairs before the comma is told to you, the last one, if(,1)==",")

s1 = , remove the last.

1),"") to replace the space.

What not to do}

if (s1[','If the last character is a comma.

Just like that, it's okay :,');

',');Don't choose such a good promise?

string strs = "ksdlfjskdlfjdks";

1.In cases where the previous character is not repeated, trimstart('k'Method.

2.Interception can also be used.

string demo2 = , 1);

3.It can also be used directly and simply.

string demo3 = ;

string s = "123456";

int lastindex = ;

s = ;This removes the last digit of the string s.

Use the method of truncating strings. Use the substring() method to intercept it. Upstairs is the right solution.