主力板块资金流出前10：电子流出164.78亿元、通信流出88.18亿元

Group 1 - The main market experienced a net outflow of 29.449 billion yuan in principal funds as of February 27 [1] - The top ten sectors with the largest fund outflows included Electronics (-16.478 billion yuan), Communications (-8.818 billion yuan), and Semiconductor (-6.945 billion yuan) [1] - The sector with the highest net outflow was Electronics, with a decline of 1.12% [2] Group 2 - The Communication sector saw a slight increase of 0.22% but still experienced a net outflow of 8.818 billion yuan [2] - The Communication Equipment sector had a net outflow of 8.421 billion yuan, with a decline of 0.52% [2] - The Power Equipment sector recorded a net outflow of 4.999 billion yuan, with a decrease of 0.41% [3] Group 3 - The Components sector faced a significant decline of 2.33% with a net outflow of 4.474 billion yuan [3] - The Grid Equipment sector had a net outflow of 4.022 billion yuan, reflecting a decrease of 0.72% [3] - The Printed Circuit Board sector experienced the largest decline of 2.79% with a net outflow of 3.795 billion yuan [3]