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33 lines
596 B
33 lines
596 B
2 years ago
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/* 操作数量：常用于商品数量操作
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---------------------------------------------------------------*/
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export default {
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//增
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increase(curr, max, min = 1) {
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let n = parseInt(curr);
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max = parseInt(max);
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min = parseInt(min);
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if (n >= max) {
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n = max;
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} else if (n < min) {
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n = min;
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} else {
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n++;
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}
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return n;
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},
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//减
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decrease(curr, max, min = 1) {
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let n = parseInt(curr);
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max = parseInt(max);
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min = parseInt(min);
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if (n > max) {
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n = max;
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} else if (n <= min) {
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n = min;
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} else {
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n--;
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}
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return n;
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}
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};
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