import re

# 输入字符串
input_str = "{tachofAmp0[0]} {tachofAmp0[1]} {tachofAmp0[2]}"

# 正则表达式
pattern = r"\{([a-zA-Z0-9_]+)\[(\d+)\]\}"

# 匹配
match = re.findall(pattern, input_str)

print(match)