大家好,又见面了,我是你们的朋友全栈君。
/// string类型转化为bytes32型转
function stringToBytes32(string memory source) constant internal returns(bytes32 result){
assembly{
result := mload(add(source,32))
}
}
/// bytes32类型转化为string型转
function bytes32ToString(bytes32 x) constant internal returns(string){
bytes memory bytesString = new bytes(32);
uint charCount = 0 ;
for(uint j = 0 ; j<32;j++){
byte char = byte(bytes32(uint(x) *2 **(8*j)));
if(char !=0){
bytesString[charCount] = char;
charCount++;
}
}
bytes memory bytesStringTrimmed = new bytes(charCount);
for(j=0;j<charCount;j++){
bytesStringTrimmed[j]=bytesString[j];
}
return string(bytesStringTrimmed);
}
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