a = [1,2,3,4,5]
N = len(a)
for i in range(int(len(a)/2)):
a[i],a[N-i-1] = a[N-i-1],a[i]
print(a)
回圈里面沒理解
uj5u.com熱心網友回復:
a = [1,2,3,4,5]
N = len(a)
for i in range(int(len(a)/2)):
a[i],a[N-i-1] = a[N-i-1],a[i]
print(a[i],a[N-i-1])
print(a)
5 1
4 2
[5, 4, 3, 2, 1]
***Repl Closed***
不理解print一下就明白了,就是兩兩互換
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