字符串轉(zhuǎn)換數(shù)字var a = '1';console.log(+a);console.log(a++);console.log(-a+3);console.log(parseInt(a));console.log(parseFloat(a));console.log(Number(a));數(shù)字轉(zhuǎn)換字符串var a = 1;a+''String(a);a.toFixed();a.toLocaleString();a.toPrecision();a.toString();數(shù)組轉(zhuǎn)字符串var arr = [1,2,3];arr.toString();arr+"";數(shù)組轉(zhuǎn)數(shù)字，只能有一位，否則NaNvar arr = [1];++arr;+arr;arr--;arr-0arr.toString()-0

$("#archive").bind('click',function(){      var page=$("input[name='page']").val();  //要用parseInt進(jìn)行數(shù)值的運(yùn)算  $("input[name='page']").val(parseInt(page)+1);  });