Python怎样进行词频统计

info = {'苹果':1, '梨':2}
a = info.get('苹果')
print(a)

info = {'苹果':1, '梨':2}
a = info.get('草莓',3)
print(a)

counts = {}
for w in words:
    if w in counts:                      //如果w在字典counts中
        counts[w] = counts[w] + 1        //在之前的次数加1
    else:
        counts[w] = 1                    //把词语添加到字典中，并计数1次
print(counts)

counts = {}
for w in words:
    c= counts.get(w,0)                //w不在counts中，返回0； 存在，返回w对应的值。
    counts[w] = c + 1                    
print(counts)

m = 0
k = 0
for c in counts:
    if counts[c] > m:
        m = counts[c]
        k = c
print(k, counts[k])