The looping structure in Python

Comparison operators in Python:

Relational operators in Python:

Loops are designed to solve recurring problems.

1. For

Implement 1+. +100 summation

1 sum=02 for in range (1,101):   #range (start,stop,step) 3     Sum+=i

2. While

1 i=12 sum=03 while i<101:4     sum+=i 5     I+=1

Note: There is no + + and--operator in Python

When the loop statement is used in conjunction with a judgment condition statement, note that break jumps out of the smallest loop, and continue jumps out of the loop.

The looping structure in Python