app-span 支持表单格式化 更新---fix1

src/components/app-span/app-span.vue

@@ -183,14 +183,14 @@ export default class AppSpan extends Vue {
             if(this.$util.isEmpty(this.value)){
                 this.text = '';
             }else if(this.dataType){ //货币格式化
-                let result = "";
+                let result = '';
                 let number:any = this.value;
                 let decimal = number.split('.')[1];
                 number = Number(number);
                 let _unitName = this.unitName?this.unitName:'';
                 if (decimal){
                     let precision = decimal.length;
-                    this.text = Number(number.toFixed((Object.is(precision,NaN) ? 2 : precision))).toLocaleString('en-US')+ ' '+ _unitName;   
+                    this.text = Number(number.toFixed(precision)).toLocaleString('en-US')+ ' '+ _unitName;   
                 }else{
                     this.text =  Number(number.toFixed(0)).toLocaleString('en-US')+ ' '+ _unitName;
                 }