已采纳回答 / 慕娘3551181
1. Jack()函数的返回类型错误float Jcak(float i,float time)2. Jack()函数的指定返回结果错误printf（"%f\n",cost);return cost;
2021-10-10
最新回答 / 慕前端3368111
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2021-09-16
