Comments (2)
hitcxy
commented on June 7, 2024
数组处“然后我们调用 attack 函数，传入的 _value 值为 2，可以从交易中发现 a 被传入的 _value 值覆盖了：”这句话有问题，a的值不是因为被_value覆盖，而是读取a的值作为了数组长度，然后再push导致数组长度+1，再将a覆盖为数组长度。 所以调用attack时不管_value为几，调用之后a都会变成a+1.
对的，确实是之前的师傅写的有问题，我马上订正
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hitcxy
commented on June 7, 2024
数组处“然后我们调用 attack 函数，传入的 _value 值为 2，可以从交易中发现 a 被传入的 _value 值覆盖了：”这句话有问题，a的值不是因为被_value覆盖，而是读取a的值作为了数组长度，然后再push导致数组长度+1，再将a覆盖为数组长度。 所以调用attack时不管_value为几，调用之后a都会变成a+1.
已订正
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