52 lines
1.1 KiB
HTML
52 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=\, initial-scale=1.0">
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<title>Document</title>
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<script>
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//递归 : 函数中 自己调用自己
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function jiecheng(n){
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var jieguo=1
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for(var i=n;i>0;i--){
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jieguo=jieguo*i
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}
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return jieguo
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}
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// console.log(jiecheng(5))
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// 阶乘 5 =〉5*4*3*2*1
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function jc(m){
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if(m<=1){
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return 1
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}else{
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return m*jc(m-1)
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}
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}
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// function jc1(m){
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// if(m<=1){
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// return 1
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// }else{
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// return m*jc(m-1)
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// }
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// }
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// 5*jc(4)
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// 4*jc(3)
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// 3*jc(2)
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// 2*jc(1)
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// 2*1
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// console.log(jc(5))
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var jc1=jc
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jc=null;
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console.log(jc1(5))
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</script>
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</head>
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<body>
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</body>
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</html> |