python 中break用法
为什么在范围len(x)上迭代，那第一个值的索引是1还是0.9999捏？
x = [0.9,0.99,0.999,0.9999,0.999991]
for i in range(len(x)):
if x[i]>0.999:
print(x[i])
break
out:
0.9999
遍历x当然就是在x的长度范围内遍历啊。第一个索引从0 开始
为什么在范围len(x)上迭代，那第一个值的索引是1还是0.9999捏？
x = [0.9,0.99,0.999,0.9999,0.999991]
for i in range(len(x)):
if x[i]>0.999:
print(x[i])
break
out:
0.9999
遍历x当然就是在x的长度范围内遍历啊。第一个索引从0 开始