while loop statement

In order to better and faster review later, this blog records my summary of the work. For the basic job, I think the most important thing is the process, as to whether the implementation is perfect, the code is not perfect, although important, but

1. NotesComments generally have the following methods# single Comment"" "Comment content" "" Multiline comment#coding =utf-8 or#coding =GBK plus Chinese notes.++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++2.continue statement

The way Swift declares variables is similar to JS. Basic types are basically the same as Java, with more character types.Let: used to declare constants;var: used to declare variables;Basic types are: double,float,int (numeric type), Boolean (Boolean

1. Null pointer errorIn the use of Java arrays, it is sometimes necessary to compare elements in a string array. The program will run normally when the element is not NULL, however, the program will have a null pointer error if the element being

One: summary of key points of knowledge1. Python output and input function----print (), input ()2. Conditional judgment----if else, elif3. Loop----while, forTwo: Python the output and input functions1. Python's output function: print () #打印输出Print ()

PointerI believe you are not unfamiliar with the following code:int i=2;int *p;p=&i;This is the simplest pointer application and is the most basic usage. Let's get acquainted. What is a pointer: First the pointer is a variable, it holds not the

PointerI believe you are not unfamiliar with the following code:int i=2;                                              int *p;                                                p=&i; This is the simplest pointer application and is the most basic usage.

Process Control statements mainly include sequential statements, SELECT statements, loop statements, and jump statements.Sequential structure: The sequential structure is the most common process structure in the program, and the statements are

First, the circulation1.for CycleFor loop in bash script, edit bash file 1.sh, enter code as follows:(The code in the example is intended to output numbers from 1 to 10) Running 1.sh, that is, entering bash 1.sh at the terminal, the results are as

This article describes the following several commonly used file operation functions file_get_contents read the entire file contents fopen Create and open files Fclose close the file fgets read the file one line of content file_exists check whether

Experiment 1 The programming of the command interpreter one, the experimental purpose(1) Master the Principle of command interpretation procedure;(2) Master the simple Dos call method;(3) Master C language programming preliminary.Second, the

-Set I variableDECLARE @i int--Set J variableDECLARE @j int--Set the multiplication table variableDECLARE @chengfabiao varchar (1000)--Give i,j, @chengfabiao assign the initial valueSelect @i=9,@j=1, @chengfabiao = ' '--Print 99 multiplication table

One of the power of T-SQL is the large volume of operation data. However, in some scenarios, the number of rows affected by T-SQL needs to be limited. For example, in the past, Yilong encountered a scenario where too many rows were changed at a time

Overview Like other advanced languages, the T-SQL also has statements used to control the flow. The flow control statement in the T-SQL further extends the power of the T-SQL ...... This allows most of the business logic to be performed at the

Use PHP built-in functionsFgetsYou can read a row of content from a file. FgetsSyntax: Fgets (Filepointer) The following example shows how to read a file in one row. Suppose we have a sites.txt file, which has three lines and the content is

Detailed Anatomy of bash script programmingbackground: bash scripting is a crucial part of Linux learning, and it may be easy to complete a script, but it's not easy to make your own script write. Bash is almost always available for all Linux

The C language provides a variety of looping statements that can form a variety of different forms of loop structure: The loop is formed by the Goto statement and the IF statement; Use the while statement; Use the Do-while statement;

Sequential control statements (branching control (if;switch); cyclic control (For;while));Break;continue;goto; variables; constants; functions If branch control (when branching is a few ranges) Single branch: If (..) {..}; Dual branch: If (..) {..}

This article introduces the following common file operation functions: file_get_contents, which reads the entire file content. This article introduces the following common file operation functions: file_get_contents, which reads the entire file

If statement* If statement has three formats** If statement format 1:* if (relational expression) {* Statement body;* }** Execution Order:* A: Evaluates the value of the relationship expression first, to see if it is true or false* B: If true, the