1. use while circulating 1 2 3 4 5 6 8 9 10
count=0
while count <10:
count+=1
print(count)
2. Sum all numbers from 1 to 100
count=0
total=0
# Define two variables
while count <=100:
total +=count # The total's count needs to be added cumulatively every time the loop is performed.
count=count+1 # Each time we loop, the count needs to be increased by 1.
print(total) #output result
3. Output all odd numbers within 1-100
count=1
while count<=100:
if count%2 != 0:
print(count)
count+=1
4. Output all even numbers within 1-100
count=1
while count<=100:
if count%2 != 1:
print(count)
count+=1
5. User login (three retries)
while count<3:
name=input("Please enter your user name.")
password=input("Please enter the password.")
if name=="huxiaohui" and password=="123456":
print("You got it.")
break
else:
print("Wrong. Do it again.")
count+=1
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