39 lines
678 B
Dart
39 lines
678 B
Dart
void main() {
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foo4();
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}
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void foo1() {
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List<int> numList = [1, 9, 9, 4, 3, 2, 8];
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int second = numList[1];
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print(second);
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numList[3] = 6;
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print(numList);
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}
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void foo2() {
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List<int> numList = [1, 9, 9, 4, 3, 2, 8];
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numList.add(10);
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numList.insert(0, 49);
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print(numList);
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}
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void foo3() {
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List<int> numList = [1, 9, 9, 4, 3, 2, 8];
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numList.removeAt(2);
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numList.remove(3);
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numList.removeLast();
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print(numList);
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}
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void foo4() {
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List<int> numList = [1, 9, 9, 4,];
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for (int i = 0; i < numList.length; i++) {
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int value = numList[i];
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print("索引:$i, 元素值:$value");
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}
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for(int value in numList){
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print("元素值:$value");
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}
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}
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