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打印结果: 图片:1.png ![]() /* 浮点数,根据精度保留小数点位数,实际值不够的显示0{a:"",auccuracy:""} 整数,需要加上逗号{a:"",real_type:'11'} */ let data1={value:"123,432.1",accuracy:'1'} let data2={value:"-11112757",real_type:'11'} let data3={value:"566,5123,432.",accuracy:'3'} let data4={value:"566,5123,432.12",accuracy:'4'} let data5={value:"5665123432",real_type:'11'} function savaNum(data){ if (data["accuracy"]) { let accuracy = data["accuracy"]; let v = Number(data.value).toFixed(accuracy); //没有逗号的 if (!Object.is(Number(data.value), NaN)) { data.value = v; } else if (data.value.indexOf(",")&& !Object.is(Number(data.value.replace(/,/g,'')), NaN)) { //如果没有小数点 if(data.value.indexOf('.')==-1){ data.value=(data.value+'.') } let len=data.value.indexOf('.')+Number(accuracy)+1; data.value= data.value.length<len? data.value.padEnd(len,'0'):data.value; } } return data.value } function setCommaForinteger(data){ //整数加上逗号,三位一逗号,有的地方是可以配置千分位和百分位逗号,如1,111,111,也可以是111,1111 if (data.real_type=='11') { data.value=data.value.toString() for (let i = 0; i < Math.floor((data.value.length-(1+i))/3); i++) { //如1,111,111 //data.value= data.value.substring(0,data.value.length-(4*i+3))+','+data.value.substring(data.value.length-(4*i+3)); //千分位如111,1111 data.value= data.value.substring(0,data.value.length-(4*i+4))+','+data.value.substring(data.value.length-(4*i+4)); } } return data.value } console.log("精度1",savaNum(data1)) console.log("整数",setCommaForinteger(data2)) console.log("精度3",savaNum(data3)) console.log("精度4",savaNum(data4)) console.log("整数5",setCommaForinteger(data5)) |
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