Conteúdo do Curso

Learn Python from Scratch

1. The basics

Hello, World!Hello, me!Variables Comments Indentation Numbers and strings

2. Arithmetic operations

Addition Multiplication and power Division and whole part division

3. Common data types

Data types Numbers float and int Storing text Strings slicing Concatenation

4. Conditional statements

Boolean data type Combining conditions Simple if/else expressions (1/2)Simple if/else expressions (2/2)If/else expressions with multiple conditions (1/2)If/else expressions with multiple conditions (2/2)

5. Other data types

Lists (1/3)Lists (2/3)Lists (3/3)Tuples (1/3)Tuples (2/3)Tuples (3/3)Dictionaries (1/2)Dictionaries (2/2)

6. Loops

while loop (1/2)while loop (2/2)for loop (1/5)for loop (2/5)for loop (3/5)for loop (4/5)for loop (5/5)

7. Functions

Built-in functions Writing your own functions (1/5)Writing your own functions (2/5)Writing your own functions (3/5)Writing your own functions (4/5)Writing your own functions (5/5)lambda functions

Concatenation

There are also some interesting operations available for strings in Python. One of them is concatenating strings, which means gluing one string to another. In Python, it can be easily done with + sign (ensure that both sides must be either both strings or numbers)

Also, you can easily calculate the number of each symbol met in your row. Use s.count(x) to do it where s - is a variable where string stores and x - symbol you are interested in.

Also, you can replicate one string multiple times by just using multiplication. string * n will produce n copies of string.

For example,


              1234567
            
# let's concatenate strings
print("I " + "can " + "concatenate " + "strings")
# let's count number of a in specific string
s = "Linear discriminant analysis"
print(s.count("a"))
# replicate string multiple times
print("test " * 5)

Tarefa

Given two variables: name and surname with values "Alex" and "Ferguson" respectively.

You need to create variable fullname and assign the result of the concatenation of name and surname. Do not forget about the blank space between name and surname (use + " ")! Then print this fullname.
Count number of letter 'e' is fullname.

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Seção 3. Capítulo 6

Concatenation

Also, you can easily calculate the number of each symbol met in your row. Use s.count(x) to do it where s - is a variable where string stores and x - symbol you are interested in.

Also, you can replicate one string multiple times by just using multiplication. string * n will produce n copies of string.

For example,


              1234567
            
# let's concatenate strings
print("I " + "can " + "concatenate " + "strings")
# let's count number of a in specific string
s = "Linear discriminant analysis"
print(s.count("a"))
# replicate string multiple times
print("test " * 5)

Tarefa

Given two variables: name and surname with values "Alex" and "Ferguson" respectively.

You need to create variable fullname and assign the result of the concatenation of name and surname. Do not forget about the blank space between name and surname (use + " ")! Then print this fullname.
Count number of letter 'e' is fullname.

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Seção 3. Capítulo 6

Concatenation

Also, you can easily calculate the number of each symbol met in your row. Use s.count(x) to do it where s - is a variable where string stores and x - symbol you are interested in.

Also, you can replicate one string multiple times by just using multiplication. string * n will produce n copies of string.

For example,


              1234567
            
# let's concatenate strings
print("I " + "can " + "concatenate " + "strings")
# let's count number of a in specific string
s = "Linear discriminant analysis"
print(s.count("a"))
# replicate string multiple times
print("test " * 5)

Tarefa

Given two variables: name and surname with values "Alex" and "Ferguson" respectively.

You need to create variable fullname and assign the result of the concatenation of name and surname. Do not forget about the blank space between name and surname (use + " ")! Then print this fullname.
Count number of letter 'e' is fullname.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Obrigado pelo seu feedback!

Also, you can easily calculate the number of each symbol met in your row. Use s.count(x) to do it where s - is a variable where string stores and x - symbol you are interested in.

Also, you can replicate one string multiple times by just using multiplication. string * n will produce n copies of string.

For example,


              1234567
            
# let's concatenate strings
print("I " + "can " + "concatenate " + "strings")
# let's count number of a in specific string
s = "Linear discriminant analysis"
print(s.count("a"))
# replicate string multiple times
print("test " * 5)

Tarefa

Given two variables: name and surname with values "Alex" and "Ferguson" respectively.

You need to create variable fullname and assign the result of the concatenation of name and surname. Do not forget about the blank space between name and surname (use + " ")! Then print this fullname.
Count number of letter 'e' is fullname.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Seção 3. Capítulo 6

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