#根据while语句,求出1-100的偶数和
# i = 2
# sum1=0
# while i<= 100:
# sum1=sum1+i
# i=i+2
# print(sum1)
#for语句求偶数和
# sum1=0
# for i in range(1,101):
# if i%2==0:
# sum1=i+sum1
# print(sum1)
#更具while语句,求出1-100的基数和
# i=1
# sum2=0
# while i<=100:
# sum2=sum2+i
# i=i+2
# print(sum2)
#for语句求基数和
# sum1=0
# for i in range(1,101):
# if i%2==1:
# sum1=i+sum1
# print(sum1)
#while奇数减去偶数
# i =2
# sum1=0
# while i<= 100:
# sum1=sum1+i
# i=i+2
# print(sum1)
# a=1
# sum2=0
# while a<=100:
# sum2=sum2+a
# a=a+2
# print(sum2)
# print(sum2-sum1)
#for基数减偶数
# sum1=0
# for i in range(1,101):
# if i%2==0:
# sum1=i+sum1
# print(sum1)
# sum2=0
# for i in range(1,101):
# if i%2==1:
# sum2=i+sum2
# print(sum2)
# print(sum2-sum1)
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