Python learning [while] loop

Syntax for While loop:

While conditional statement

Loop code block

# #break Interrupt this layer while loop

# #跳出本次循环进入下一次循环

Else

# #循环结束后可以打印的内容

Here are a few small exercises:

1. Use the while loop to determine whether the number entered is prime.

Num=int (Input ("Please enter a number"))
M=1
If Num==0 or num==1:
    Print ("Please enter a number greater than 1")
Else
    While M<num-1:
        M+=1
        If num%m==0:
            Print ("This number is not prime")
            Break
    Else
        Print ("This number is prime")
2. Guess the number game:

The Li-While statement writes out a guess?? 's Game:

Set an ideal number, such as: 66, let the household lose the number, if the 66?, the guess is displayed
The result of, if? 66?, the result of the guess is displayed, and only equals 66, showing the Guess results
Correct, and then exit the loop.

num=66

While True:
    Type = input ("Please enter the number you guessed:")
    Type=int (Type)
    If Type >66:
        Print ("The number you entered is too large")
    Elif type<66:
        Print ("The number you entered is too small")
    Else
        Print ("The number you entered is correct")
        Break
3.

All numbers of the 1-100 are calculated and

Count=0
Sum=0
While count<100:
    Count+=1
    Sum+=count
Print (sum)

4. All odd numbers in the output 1-100
‘‘‘
# count=1
# Sum=1
# while count<99:
#     count+=2
#     Sum=count+sum
# Print (SUM)

5. All even numbers in the output 1-100
‘‘‘
# count=0
# sum=0
# while COUNT<100:
#     count+=2
#     Sum+=count
# Print (SUM)
6. Ask 1-2+3-4+5 ... The and of all numbers of 99.

‘‘‘
Count1=1
Sum1=1
While count1<99:
    count1+=2
    Sum1+=count1
Print (SUM1)
Count2=0
Sum2=0
While count2<100:
    count2+=2
    Sum2+=count2
Print (SUM2)
Print (SUM1-SUM2)

Python learning [while] loop