0 Fundamentals python-11.2 Python grammar Rules

1. Statements are executed on a line-by-row basis, unless you do not write

If the statement uses an if statement, his execution is jumping, and the IF statement is the process control

2. Automatic boundary detection of blocks and statements

Because Python does not have curly braces for these bounding symbols, it uses code indentation to control boundaries

Similarly, the end of a statement is not using semicolons, but also using code indentation

In the above example, for the indentation before the for, its scope is only within the function of Printnum, and the indentation before print, which represents the scope of print only in for, does not work outside

3. Compound statement end uses a semicolon, the execution statement inside the compound statement is called block or group, must be indented in the conforming statement

>>> def testif (param): If param<1:print ("input number less than 1") Elif 1<param<3:print ("number entered between 1 and 3") Else:print ( "Number entered is greater than 3")

4. Blank lines, spaces, comments are ignored

Once again we cite the above example, please note: I added a note after the Testif, in the first sentence I added a blank line before the colon before the if I added a space, but these are ignored in the program

5. The document string will be ignored but will be saved with the tool display

Right here, thank you.

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0 Fundamentals python-11.2 Python grammar Rules