28 lines
354 B
JavaScript
28 lines
354 B
JavaScript
Component({
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data: {
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a : 1,
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b : 1,
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sum : 2
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},
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methods: {
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tapHandle1(){
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this.setData({
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a : this.data.a + 1
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})
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},
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tapHandle2(){
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this.setData({
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b : this.data.b - 1
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})
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}
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},
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observers : {
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'a, b' : function(a, b){
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this.setData({
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sum : a + b
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})
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}
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}
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})
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