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随机数,传入长度,最大值,最小值String RandomNumber(int Length, Maximum = 9, Minimum = 0){
String Random = "";
for (int i = 0; i < Length; i++){
Random += (int)((Maximum-Minimum+1)*Math.random()+Minimum);
}
return Random;
}随机字母,传入长度,是否大写String RandomABC(int Length,Capital = 2){
String Random = "";
if (Capital == 0){
for (int i = 0; i < Length; i++){
int abc = (int)((122-97+1)*Math.random()+97);
Random += (char)abc;
}
}else if (Capital == 1){
for (int i = 0; i < Length; i++){
int ABC = (int)((90-65+1)*Math.random()+65);
Random += (char)ABC;
}
}else{
for (int i = 0; i < Length; i++){
if ((int)((1-0+1)*Math.random()+0) == 0){
int Abc_a = (int)((122-97+1)*Math.random()+97);
Random += (char)Abc_a;
}else{
int Abc_A = (int)((90-65+1)*Math.random()+65);
Random += (char)Abc_A;
}
}
}
return Random;
}
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