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此案例为相减方案、若要使用相除修改运算符号即可。 JS数字减法测试 var cj,a,b; function jisuan() var dy, de, xsws, tmp; a = document.getElementById(ks).value; b = document.getElementById(js).value; if (a = | b = ) alert(请填写完整!); a = a+; b = b+; if (a.indexOf(.) 0) dy = a.substring(a.indexOf(.)+1, a.length).length; else dy = 0; if (b.indexOf(.) 0) de = b.substring(b.indexOf(.) + 1, b.length).length; else de = 0; if (dy de) xsws = dy; else xsws = de; if (xsws 0) pjcj(xsws); if ( xsws - dy 0) tmp = xsws - dy; pj0(1, tmp); if (xsws - de 0) tmp = xsws - de; pj0(2, tmp); a = a + ; a=a.replace(., ); b = b + ; b=b.replace(., ) alert(parseInt(a, 10) - parseInt(b, 10)/parseInt(cj); function pjcj(len) var m = 1; for (i = 0; i len;i+ ) m += 0; cj = m; function pj0(ss,len) for (i = 0; i len; i+) if (ss=1) a += 0; else b += 0; 第一位数:第二位数:
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