golang go-ethereum contract string to [32]byte

  
func covertStringByte32(t string) [32]byte {  
 var b32 [32]byte  
 copy(b32[:], []byte(t))  
 return b32  
}  
  
func covertStringByte64(t string) [64]byte {  
 var b64 [64]byte  
 copy(b64[:], []byte(t))  
 return b64  
}