为什么不能用for,求解
L = []
x = 1
for x in L:
    if x<=100:
        L.append(x*x)
        x = x +1
    else:
        print erorr
print sum(L)
L = []
x = 1
for x in L:
    if x<=100:
        L.append(x*x)
        x = x +1
    else:
        print erorr
print sum(L)
 
                            2020-01-03
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