已采纳回答 / 慕仙3032168
你代码的逻辑是有问题的你这个代码运行之后，num一开始等于1；进入while循环后，再进入for循环，for循环本身就已经把字符串中的字符全部遍历了一遍并打印出来并且num=num+1执行了相当于字符串长度的次数，此时num>8 while跳出。最终导致的就是字符串中的字符全部被输出
2021-01-14
num = 1
sum = 1
while num <= 10:
sum = sum * num
num = num + 1
print(sum)
sum = 1
while num <= 10:
sum = sum * num
num = num + 1
print(sum)
2021-01-13
startnum = 1
endnum = 10
num = 1
while startnum < endnum:
num = num * (startnum + 1)
startnum = startnum + 1
print(num)
endnum = 10
num = 1
while startnum < endnum:
num = num * (startnum + 1)
startnum = startnum + 1
print(num)
2021-01-13
n=0
L=['Alice','66','Bob',True,'False',100]
for item in L:
n=n+1
if n%2!=0:
continue
print(item)
L=['Alice','66','Bob',True,'False',100]
for item in L:
n=n+1
if n%2!=0:
continue
print(item)
2021-01-13
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
list = list(d)
for i in list:
print(d.get(i))
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
list = list(d)
for i in list:
print(d.get(i))
2021-01-13
已采纳回答 / 慕哥2041944
这个涉及到变量的作用域和临时变量的生命周期的问题了。程序执行时自上而下执行的sum=0.0 ##这里时声明一个临时变量sum，并给他赋值0.0， sum=sum+5，时把新值赋值给sum，所以此时的sum跟一开始的sum不一样了。类似，x=1, 而后我重新对x进行复制x=5, 此时x的值为5.
2021-01-12
num=0
sum=0
while num <= 1000:
num = num + 1
if num % 2 == 1:
continue
sum = sum + num
print(sum)
sum=0
while num <= 1000:
num = num + 1
if num % 2 == 1:
continue
sum = sum + num
print(sum)
2021-01-12
num=0
sum=0
while True:
if num>1000:
break
sum=sum+num
num=num+2
print(sum)
sum=0
while True:
if num>1000:
break
sum=sum+num
num=num+2
print(sum)
2021-01-12
T = (1, 'CH', [3, 4])
T = list(T)
T[2] = tuple(list(T[2]))
print(tuple(T))
T = list(T)
T[2] = tuple(list(T[2]))
print(tuple(T))
2021-01-12
