擅长:python、mysql、java
<p>我想用javascript来实现这一点(我知道它不是python,而是相同的逻辑):</p>
<pre><code>let answer = 'acacbascsacasceoidfewfje';
for(i=0;i<answer.length;i++){
if(obj[answer.substr(i,1)] === undefined){
obj[answer.substr(i,1)] = 1
}else{
obj[answer.substr(i,1)]++;
}
}
JSON.stringify(obj)
</code></pre>
<p><strong>结果:</strong></p>
<blockquote>
<p>"{"a":4,"c":4,"b":1,"s":2,"e":2,"o":1,"i":1,"d":1,"f":1,"w":1,"j":1}"</p>
</blockquote>