①有线或者无线网络硬件 ②网络协议 ③文件共享
for i in range(1, 10):
sum = 0; j = i
while ① and j <= 10:
sum += j
j += 1
if sum == 20:
print("从", ② , "到", ③ )
该程序的输出结果是“从 2 到 6”,则划线处的代码为( )
s = "[[11,2],[2,31,2],[1]]"
res = []; num = 0
for i in s[1:- 1]:
if i=="[":
tmp = []; flag = True
elif i =="]":
flag = False
tmp.append(num); res.append(tmp) #①
elif i==",":
if :tmp.append(num)
num = 0
else:
num = num*10+int(i)
print(res)
关于上述代码,下列说法正确的是( )