3838 < hr class ="two " />
3939 < li >
4040 < img src ="../images/arrow.png " alt ="" class ="arrow-img " />
41- < a href ="https://youtube.com ">
41+ < a href ="index.html ">
4242 < span class ="lesson "> Lesson 2 / Revision</ span >
4343 </ a >
4444 </ li >
@@ -151,14 +151,15 @@ <h1 class="h1">
151151 < hr class ="one " />
152152 < h1 class ="h1 "> This Is A Quick Revision Of Python For This Course</ h1 >
153153 < div class ="video-container ">
154- < iframe width ="560 " height ="315 " src ="https://www.youtube.com/embed/RQKJB7z-OqU " title ="YouTube video player "
154+ < iframe width ="560 " height ="315 " src ="https://www.youtube.com/embed/EaUnN9SZmy8 " title ="YouTube video player "
155155 frameborder ="0 "
156156 allow ="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share "
157157 allowfullscreen > </ iframe >
158158 </ div >
159159 < center >
160160 < div id ="box ">
161- < span > Full PlayList</ span >
161+ < a style ="color: chartreuse; " href ="https://www.youtube.com/watch?v=RQKJB7z-OqU&list=PLGxMeslbGNsU38f0599lOC-cRmrf01lD3&pp=iAQB "> < span > Full
162+ PlayList</ span > </ a >
162163 </ div >
163164 </ center >
164165 < hr class ="one " />
@@ -242,32 +243,12 @@ <h1 class="h1">This Is A Quick Revision Of Python For This Course</h1>
242243 tutorials, and documentation to support learning and mastering DSA using Python.
243244 </ p >
244245 < hr class ="one " />
245- < h1 class ="story "> Data Structures In Python</ h1 >
246+ < h1 class ="story "> First Python Program </ h1 >
246247 < hr class ="two " />
247- <!-- <center>
248- <p class="p" style="color: aqua !important">
249- Now look at this picture very carefully...
250- </p>
251- </center>
252- <div class="div-img">
253- <img class="img" src="../images/dgm-2.png" alt="" />
254- </div>
255- <center>
256- <p class="p" style="color: aqua !important">
257- This is the solution for the problem...
258- </p>
259- </center>
260- <div class="div-img">
261- <img class="img" src="../images/dgm-3.png" alt="" />
262- </div> -->
263248 < div class ="container main-body-2 ">
264249 < pre class ="left-2 ">
265250 < code id ="code-block " class ="python ">
266- # Your Python code here
267- def greet():
268251 print("Hello, World!")
269-
270- greet()
271252 </ code >
272253 </ pre >
273254
@@ -278,48 +259,105 @@ <h1 class="story">Data Structures In Python</h1>
278259
279260 < hr class ="one " />
280261 < h1 class ="h1 ">
281- Some Very Popular Data Structures In Different Programming Languages
262+ Variables In Python
282263 </ h1 >
283- < div id ="table ">
284- < table >
285- < thead >
286- < th > Data Structure</ th >
287- < th > Python</ th >
288- < th > Java</ th >
289- < th > C++</ th >
290- </ thead >
291- < tbody >
292- < tr >
293- < td > Array</ td >
294- < td > Lists</ td >
295- < td >
296- Native Array
297- < br />
298- ArrayList
299- </ td >
300- < td >
301- Native Array
302- < br />
303- std::vector
304- </ td >
305- </ tr >
306- < tr >
307- < td > Hash Table</ td >
308- < td > Dictionary</ td >
309- < td >
310- HashMap < br />
311- LinkedHashMap
312- </ td >
313- < td > std::map</ td >
314- </ tr >
315- < tr >
316- < td > Linked List</ td >
317- < td > Not Available</ td >
318- < td > LinkedList</ td >
319- < td > std::list</ td >
320- </ tr >
321- </ tbody >
322- </ table >
264+ < hr class ="two " />
265+ < p class ="p " style ="color: aqua !important "> Variables are the name , given to a particular memory location. We've
266+ to follow some rule to declare a variable names in Python . Those are :-</ p >
267+ < h1 class ="story "> Do This</ h1 >
268+ < span class ="do " style ="color: chartreuse; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1) Starts
269+ with only A-Z / a-z/ _ .</ span >
270+ < br />
271+ < span class ="do " style ="color: chartreuse; font-family: cursive; font-size: 20px; padding-left: 100px; "> 2) Can
272+ contain number in the middle.</ span >
273+ < h1 class ="story "> Don't Do This</ h1 >
274+ < span class ="do " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1) Doesn't
275+ starts with any number (0-9).</ span >
276+ < br />
277+ < span class ="do " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 2) Some
278+ system variables starts with (_) , so we'll avoid that.</ span >
279+ < p class ="p "> As Python is a Dynamically Typed programming language , we don't need to mention the data type of the
280+ variable . This will automatically detect that .</ p >
281+ < hr class ="one " />
282+ < h1 class ="h1 ">
283+ Data Types In Python
284+ </ h1 >
285+ < hr class ="two " />
286+ < p class ="p "> We've some by default data-types in Python like,-</ p >
287+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
288+ Integer</ span >
289+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 2)
290+ Float</ span >
291+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 3)
292+ Strings</ span >
293+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 4)
294+ Arrays</ span >
295+ < p class ="p "> To know a data-type of a variable , we can use < span style ="color: greenyellow; "> type()</ span >
296+ function .</ p >
297+ < hr class ="one " />
298+ < h1 class ="h1 "> Arithmetical Operators</ h1 >
299+ < hr class ="two " />
300+ < p class ="p "> In Python we've some Arithmetical Operators ,-</ p >
301+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
302+ < b style ="color: chartreuse; "> [+]</ b >
303+ To add two integers / floats / strings</ span >
304+ < br />
305+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
306+ < b style ="color: chartreuse; "> [-]</ b >
307+ To subtract two integers / floats</ span >
308+ < br />
309+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
310+ < b style ="color: chartreuse; "> [*]</ b >
311+ To multiply two integers / floats</ span >
312+ < br />
313+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
314+ < b style ="color: chartreuse; "> [/]</ b >
315+ To divide two integers / floats</ span >
316+ < br />
317+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
318+ < b style ="color: chartreuse; "> [**]</ b >
319+ To power two integers / floats</ span >
320+ < br />
321+ < span class ="dos " style ="color: #ff002b; font-family: cursive; font-size: 20px; padding-left: 100px; "> 1)
322+ < b style ="color: chartreuse; "> [//]</ b >
323+ To floor division two integers / floats</ span >
324+ < hr class ="one " />
325+ < h1 class ="h1 "> Taking Inputs</ h1 >
326+ < hr class ="two " />
327+ < p class ="p "> We've to use < span style ="color: chartreuse; "> input()</ span > function to take inputs , from the users
328+ . By default the < span style ="color: chartreuse; "> input()</ span > function stores the user input in string
329+ data-type format .</ p >
330+ < div class ="container main-body-2 ">
331+ < pre class ="left-2 ">
332+ < code id ="code-block " class ="python ">
333+ def add():
334+ input1 = input("Enter Your first Number : ")
335+ input2 = input("Enter Your second Number : ")
336+
337+ output = input1 + input2
338+ print("The result is " + output)
339+
340+ add()
341+ </ code >
342+ </ pre >
343+ </ div >
344+ < hr class ="two " />
345+ < p class ="p "> This code will store your numbers as string data-type , so it will not add your numbers . But if you
346+ want to add them , you've to convert the data-type to string(str) to integer(int) . Let see how we can do that,-
347+ </ p >
348+ < div class ="container main-body-2 ">
349+ < pre class ="left-2 ">
350+ < code id ="code-block " class ="python ">
351+ def add():
352+ input1 = int(input("Enter Your first Number : "))
353+ input2 = int(input("Enter Your second Number : "))
354+
355+ output = input1 + input2
356+ print("The result is " + output)
357+
358+ add()
359+ </ code >
360+ </ pre >
323361 </ div >
324362 </ div >
325363 </ div >
@@ -329,11 +367,6 @@ <h1 class="h1">
329367 </ footer >
330368 < script src ="script.js "> </ script >
331369 < script src ="
https://cdn.jsdelivr.net/npm/[email protected] /prism.min.js "
> </ script > 332- <!-- <script>
333- // Initialize Prism.js
334- Prism.highlightAll();
335- </script> -->
336-
337370</ body >
338371
339372</ html >
0 commit comments