Python Learning: string manipulation

1: Double quote escape

<span style= "FONT-SIZE:18PX;" ><strong>print "he\" Llo "</strong></span>

you only need to precede the double quotation mark with a backslash.

Output result: he "Llo

2: Concatenation of strings

(1) You can use the + number

<span style= "FONT-SIZE:18PX;" ><strong>print "Hello" + "" + "wolrd" </strong></span>

(2) You can use commas

<span style= "FONT-SIZE:18PX;" ><strong>print "Hello", "World" </strong></span>

(3) can use * number

<span style= "FONT-SIZE:18PX;" ><strong>print "Hello" *3</strong></span>

Output Result:

Hello wolrd
Hello World
Hellohellohello

3: String length

<span style= "FONT-SIZE:18PX;" ><strong>print len ("Hello") </strong></span>

Use the Len () function. Output Results 5

4: Type conversion: string to int

<span style= "FONT-SIZE:18PX;" ><strong>print Int ("111") + 1</strong></span>

Output Results

5: Type conversion: int to string

<span style= "FONT-SIZE:18PX;" ><strong>print "AAA" + str (1) </strong></span>

Using the function str

Output Result: AAA1

Python Learning: string manipulation