题解 | #计算某字母出现次数#
计算某字母出现次数
http://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
var str = readline().toLowerCase()
var char = readline().toLowerCase()
var count = 0
for (let i = 0; i < str.length; i++) {
if (str[i] === char) {
count++
}
}
console.log(count) 
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