#以|为分割点,将arr转换为二维数组 arr = ['] tmp = [] tmp2 = [] for x in arr tmp << x if x != '|' tmp2.push Array.new(tmp) if x == "|" tmp.clear if x == "|" end tmp2.push Array.new(tmp) print tmp2 输出为: [["1", "2"], ["3&
perl没有真正的二维数组,所谓的二维数组其实是把一维数组以引用的方式放到另外一个一维数组. 二维数组定义 : my @array1=([1,2],[3,4],[45,9],[66,-5]); <-----------使用[]表示匿名数组 或者 my @array2=qw/this is a array/;my @array3=("another","array");my @array4=(\@array2,\@array3);
Minimum Transport Cost Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8860 Accepted Submission(s): 2331 Problem Description These are N cities in Spring country. Between each pair of cities
data=[[col for col in range(4)] for raw in range(4)] #创建一个二维数组 for n in data: print (n) print('\n') for i in range(len(data)): #外层循环 for j in range(i+1,len(data)): #内层循环 #交换数据 temp=data[i][j] data[i][j]=data[j][i] data[j][i]=temp for n in data: print