how to print variable

In fact, the external variable referenced by the function is the last value. Document ///////////////////////////////JS Code////////////////////////// Window.onload = function() { var box = document.getElementById ("box");

I. Program variablesto view the value of a variable in a file:file::variablefunction::variableYou can specify the variables you want to see in this form, in which file or in which function. For example, view the value of global variable x in file f2.

1, in the debugging process, want to output the value of a variable to vs output window, rather than by adding breakpoints, each debugging, step-by-step look at the value of the variable, very troublesome, with Console.WriteLine (str); No, this

Python variable ScopeVariable Scope LEGB1. Scope of variablesWhen you create, change, or find a variable name in a Python program, it is done in a space (namespace) that holds the variable name, which we call the scope. The scope of the Python is

Study Address: http://www.jianshu.com/p/17a9d85845301. Scope of variable scope LEGB1.1 variablecreating, changing, and locating variable names in a Python program is done in a space where variable names are stored, which we call namespaces, also

In terms of structure, there are strict differences between uppercase letters of C, C ++, JAVA, and Perl and lowercase letters. For example, $ I and $ I are two different variables. Basic items In terms of structure, there are strict differences

This article to share the content is the debugging function, interested friends can look at, also can give the students who need help a little reference Two of the most basic output methods echo and Print /***echo is a language structure

Study Address: http://www.jianshu.com/p/17a9d85845301. Scope of variable scope LEGB1.1 variablecreating, changing, and locating variable names in a Python program is done in a space where variable names are stored, which we call namespaces, also

This chapter focuses on data types (basic types and reference types) in JavaScript, variables (including the scope of variables), operators (primarily some of the more common but not easily understood operators). Because of the "all objects" in

Python is a programming language for rapid development of software, its syntax is simple, easy to grasp, but there is a slow implementation of problems, and in dealing with some problems, such as access to computer hardware systems, access to media

Introduction to python replication (deep copy, shallow copy) and python Blog reference: click here In python, there are differences between object replication and shallow copy and deep copy. Here we mainly use variable variables for demonstration,

This chapter describes the data types (Basic Types and reference types), variables (including the scope of variables), and operators (mainly common, but not operators that can be understood literally ). Because "Everything is an object" in

This article will focus on the basic concepts in JavaScript. These concepts are quite different from those in traditional languages. Therefore, we will list a separate chapter for specific descriptions to understand the concepts of this chapter and

Python arithmetic operatorsThe following hypothetical variables: a=10,b=20: operator Description Example + Add-Two objects added A + B output result 30 - Minus-get negative

The concept of Python modulesEvery file in Python that ends with a. Py can be used as a module___Definition of a variable The variables need not be declared beforehand; The variable does not need to specify a type;***Basic data types in

1.1: Type There are 8 types of variables, which do not need to be memorized to deepen understanding in practical use. 1) integer [integer] math integers 2) floating-point [float,double] Math decimal 3) string [string] a string of characters 4)

In learning YII and the use of the process, summed up a number of skills and knowledge points, to facilitate their own memory. Here to share with you.1, not through the log to get AR execution of native SQL statements and print variable data$query =

/* Function Name: Test Parameter delivery Method: "&" means reference delivery Parameters: $a*/Function test (& $a) {$a + = 1;} Declare variable B, and assign a value of 1$b = 1;The value of print variable B is 1Var_dump ($b);Call the

PHP Learning Path II (array exercises) For an array of exercises, PHP is different from Java and C + + He is a weak type of language, and PHP arrays are very powerful. It has both the properties of the array in Java and the purpose of the

Emacs, as the saying goes, is God's editor, and Vim is the editor's God. Master programmers are using these two artifacts to develop. I think that Emacs is great because many of the other editors have to use the mouse to select a lot of steps, which