编写一个Python程序，实现一个简单的文本压缩器。压缩规则是：将连续重复出现的字符替换为字符后跟一个数字，表示重复的次数。例如，"aaabbc" 应该被压缩为 "a3b2c1"

当然可以，下面是一个简单的Python程序，它使用了`itertools.groupby`函数来实现文本压缩：

from itertools import groupby

def compress_text(text):
    compressed = []
    prev_char = None
    count = 0
    
    for char, group in groupby(text):
        if prev_char is not None and char == prev_char:
            count += 1
        else:
            compressed.append(f'{char}{count}' if count > 1 else char)
            count = 1
        
        prev_char = char
    
    return ''.join(compressed)

# 示例
text = "aaabbc"
compressed_text = compress_text(text)
print(f"Original text: {text}")
print(f"Compressed text: {compressed_text}")