add utf-8 encoding
Revert "add utf-8 encoding"

This reverts commit 62c3f2a412ed20be4478ed19516ab97a102e4294.
add utf-8 encoding
Revert "add utf-8 encoding"

This reverts commit fdb1effba63e45fc36d0d13bf22a3f0ff7655a8e.
utf-8 encoding add