L = [ ['Apple', 'Google', 'Microsoft'], ['Java', 'Python', 'Ruby', 'PHP'], ['Adam', 'Bart', 'Lisa'] ]
print(L[0][0]);
print(L[1][1]);
print(L[2][2]);
for i in range(0,len(L)): print(L[i][i]);
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苏梅m1205
L = [ ['Apple', 'Google', 'Microsoft'], ['Java', 'Python', 'Ruby', 'PHP'], ['Adam', 'Bart', 'Lisa'] ]
方法1：
打印Apple:
print(L[0][0]);
打印Python:
print(L[1][1]);
打印Lisa:
print(L[2][2]);
方法2：
L = [ ['Apple', 'Google', 'Microsoft'], ['Java', 'Python', 'Ruby', 'PHP'], ['Adam', 'Bart', 'Lisa'] ]
for i in range(0,len(L)): print(L[i][i]);