Aardio - integrate variable values into a string of text through variable names

One ： introduction

Suppose you have declared many variables , as follows ：

//  Various variables ( Constant )
console.name = " Zhang San " // Member variables 
::age = 18			// Global variables 
..sex = " male "		// Global variables 
var score = 90		// local variable 
var t = {			// Array 
	 result  = " good ";
	 comment  = " very good ,nice, Continue to work hard ！";
	}
_OK = " Isn't surprise ？"	// Global constants 

---

If we want to integrate it into a string of texts , such as sql Statements and so on , The usual way is ：

var s = ..string.format(' full name ：%s\n Age ：%s\n Gender ：%s\n achievement ：%s\n result ：%s\n remarks ：%s'
                        ,console.name,age,sex,score,..table.tostring(t),_OK);

Execution results ：

or ：

var s = ..string.format(
` full name ：%s
 Age ：%s
 Gender ：%s
 achievement ：%s
 result ：%s
 remarks ：%s`,
console.name,age,sex,score,..table.tostring(t),_OK);

  Execution results ：

---

Two 、 Basic solution ： 

It seems that this is already very convenient .

however python There is a more convenient , most important of all , Very intuitive The method of formatting string ：f

f-string

A method of formatting strings , Use to f Starting string , be called f-string, It differs from ordinary strings in that , If the string contains {xxx}, Will be replaced by the corresponding variable ：

>>> r = 2.5
>>> s = 3.14 * r ** 2
>>> print(f'The area of a circle with radius {r} is {s:.2f}')
The area of a circle with radius 2.5 is 19.62

In the above code ,{r} The dependent variable r The value of ,{s:.2f} The dependent variable s The value of , also : hinder .2f Format parameters specified （ That is, keep two decimal places ）, therefore ,{s:.2f} The result of the replacement is 19.62.

Put the variable name in the most appropriate place it should be , Make it very readable .

that , use aardio Can you imitate this grammar ？

suffer  sunjichuancsdn The blog of

《 aardio Debugging libraries solve interesting problems with local variables （ One ）_aardio Blog of notes -CSDN Blog _aardio》

A piece of inspiration （ Thank you ）, We imitate f-string, Make one f() function , Implement this function , Take a look at the following sentence ：

The key is coming. ：

Is it very close ！！

Try to construct a statement by yourself ： 

var s = f(' full name ：{console.name}\n Age ：{age}\n Gender ：{sex}\n achievement ：{score}\n result ：{t}\n remarks ：{_OK}')

Think about the implementation results ？ have a look ：

or ：

var s = f(
` full name ：{console.name}
 Age ：{age}
 Gender ：{sex}
 achievement ：{score}
 result ：{t}
 remarks ：{_OK}`)

  Execution results ：

---

3、 ... and 、 More usage ：

Does it look comfortable ？ Where the variable name is located , Be clear at a glance , It's very comfortable to read .

See more detailed usage ：

1、 Formatting text ：

import console; 

var t = "ABCD"
var num = 456
var num2 = 12345678
var s="({t:10s})({num:10.2f})({num2:X})"

import godking
console.dump(f(s))
console.pause(true);

Execution results ：

2、 Exclude function hierarchy ：

import console; 

var t = "ABCD"
var num = 456
var num2 = 12345678
var s="({t:10s})({num:10.2f})({num2:X})"

import godking
var test = function(){
	var t = "EFGH"    //  First find the variable value of the nearest level , find  "EFGH"  instead of  "ABCD"
	var num = 890     //  First find the variable value of the nearest level , find  890  instead of  456
	console.dump(" Contains variables in the function of this layer ：",f(s));       // Do not exclude any function layer , Include variables of this layer .
	console.dump(" It does not include variables in the function of this layer ：",f(s,,1));  // Exclude functions at this level (test function ,1 layer ) Variable .
	console.dump(" exclude 2 Variables in layer function ：",f(s,,2));  	 // Exclude from this layer up 2 Layer function variables .

    //  exclude 2 Layer means ： Not only does it not include functions at this level (test function ,1 layer ) Variable ,
    //  Nor does it include upper level functions (2 layer ) Variable , This is already the top floor ,
    //  therefore , All excluded , The result is that the value of the variable is not found .

}
test();
console.pause(true);

Execution results ：

3、 Global variables are not included ：

import console; 

t = "ABCD";
::num = 1111;
..num2 = 456
var  local variable  = " I'm a local variable "
var s="({t:10s})({num:10.2f})({num2:X})({ local variable })"

import godking
console.dump(" Contains global variables ：",f(s)); 
console.dump(" Does not contain global variables ：",f(s,false)); 
console.pause(true);

  Execution results ：

4、 Advanced play ：

import console; 
import godking

//  If  f  Function in “ Including the whole ” Set up （ Default ） Next ,
//  The specified variable is neither a local variable , It's not a global variable ,
//  execute eval operation , take eval The result is returned as a variable value .

var s="({3+6*8})({console.color.red})({..math.pi})"
console.dump(f(s)); 

console.pause(true);

Execution results ：

5、 A boring test ：

import console; 

var s="({s})"

import godking
for(i=1;5;1){
	s = f(s)
}
console.dump(s)
console.pause(true);

  Execution results ：

---

  Four 、 Library download address ：

f() The function code is encapsulated in Guangqing extended function library , Please download here ：

http://chengxu.online

aardio Download resources _.rar , Decompress it and put it in \lib\godking Directory .