Variable string NSMutableString and OC variable string for learning through the "snil-oc" command
NSMutableString inherits from NSString, so all NSMutableString methods of NSSting are inherited and can also be used
The following two methods are not
Php entry variable string, php entry variable. Php entry variable string. The php entry variable string is only a string of characters enclosed by quotation marks: letters, numbers, spaces, punctuation marks, and so on. All the strings listed below
When the function returns a string, we can define a return of string and string&.1 Write a function that returns a string referencestd::string & TestStringReference(){ std::string"holy shit"; return loal_str;}This function is, of course, wrong
OC: Some Usage of variable string NSMutableString, ocnsmutablestring
NSString is an immutable string, so the method is not to modify the original string, but to create a copy of the original string, and then modify the copy content.
The NSString class is an immutable class, that is, once the NSString object is created, the sequence of characters contained in the object is immutable until the object is destroyed. The Nsmutablestring object represents a string with a variable
PHP entry variable string, PHP entry variable
A string is just a piece of characters enclosed in quotation marks: letters, numbers, spaces, punctuation, and so on.
All of the following are strings:?
1234
'Huige'"In watermelon sugar"
In practice, the string series in c ++ -- function returns the local variable string (referencing the local string, the. c_str () function of the local string)
When the function returns a string, we can define the return string and string &.
1.
Variable string inherits from string//StitchingNsmutablestring *string= [nsmutablestringstring]; [stringAppendString:@"Today Sunday"]; NSLog (@"%@",string);//Today Sunday//insert (in which position to insert what?) )[stringInsertstring:@"That 's a
NSString is an immutable string, so the method call does not modify the original string, but instead establishes a copy of the original string and modifies the contents of the copy.Nsmutablestring is a subclass of NSString and can use all of its
We have explained the first three methods of string deformation. Now we are talking about the last method. The method is similar to the method of overwriting, but it is slightly different from the overwrite method. It is not directly covered by
We have introduced the addition method and query method before. Now we will introduce the subtraction method. As the name suggests, the subtraction method definitely means to remove a part from the original string and then form a new string.
NSMutableString -- variable string, nsmutablestring --
//// Main. m // OC04-task-05 // Created by keyzhang on 15-1-24. // Copyright (c) 2015 keyzhang. all rights reserved. // # import int main (int argc, const char * argv []) {@ autoreleasepool {//
1.Shell IntroductionThe shell is a program written in C that is a bridge for users to use Linux. The shell is both a command language and a programming language. A Shell is an application that provides an interface through which users access the
Kotlin Learning (2) -- basic syntax, function, variable, string template, conditional expression, null, type detection, for, while, when, interval, set, kotlinnull1. Basic syntax
Many concepts of Kotlin are similar to those of JAVA, so I should not
Variable:Variables in Python do not need to be declared beforehand, but need to be assigned before they are used, in the same way that other programming languages consist of letters, numbers, underscores, and the first cannot be numbersString:Python
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