几种方式如下
a ='asdkfjadfakjdfhaw' print(a[::2]) print("分隔符".center(50,"-")) for i in range(len(a)): if i%2==0: print(a[i],end="") print('') print("分隔符".center(50, "-")) b = list() for i in range(len(a)): if i % 2 == 0: b.append(a[i]) print(''.join(b)) print("分隔符".center(50, "-"))答案
adfafkdhw
-----------------------分隔符------------------------
adfafkdhw
-----------------------分隔符------------------------
adfafkdhw
-----------------------分隔符------------------------