for (let i = 0; i < a; i++) { for (let j = 0; j < b; j++) { for (let k = 0; k < c; k++) { getIndex(i,j,k,a,b,c); } } }多层循环,如何获取当前循环的次数?function getIndex(i,j,k,a,b,c){ //...}
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