A switch, comprising: a first switching member having a first central axis, the first switching member being supported to move reciprocally along the first central axis; and a second switching member having a second central axis, the second switching member being supported to move reciprocally along the second central axis; the first switching member and the second switching member being provided at respective positions such that they can be driven by one hand of an operator; a first crank member being supported for rotation about a first axis, the first crank member being engaged with the first switching member so that the first crank member reciprocally rotates about the first axis as the first switching member reciprocally moves along said first central axis; a second crank member being supported for rotation about a second axis, the second crank member being engaged with the second switching member so that the second crank member reciprocally rotates about the second axis as the second switching member reciprocally moves along said second central axis; a first slider configured to rotate with the first crank member; and a second slider configured to rotate with the second crank member; a printed circuit board; a first wiring pattern (34, 35a, 35b) provided on one surface of the printed circuit board, the first wiring pattern (34, 35a, 35b) being disposed so that the first slider makes contacts with the first wiring pattern (34, 35a, 35b) during the rotation of the first crank member; and a second wiring pattern (36, 37a, 37b, 37c) provided on one surface of the printed circuit board, the second wiring pattern (36, 37a, 37b, 37c) being disposed so that the second slider makes contacts with the second wiring pattern (36, 37a, 37b, 37c) during the rotation of the second crank member. a first switching member having a first central axis, the first switching member being supported to move reciprocally along the first central axis; and a second switching member having a second central axis, the second switching member being supported to move reciprocally along the second central axis; the first switching member and the second switching member being provided at respective positions such that they can be driven by one hand of an operator; a first crank member being supported for rotation about a first axis, the first crank member being engaged with the first switching member so that the first crank member reciprocally rotates about the first axis as the first switching member reciprocally moves along said first central axis; a second crank member being supported for rotation about a second axis, the second crank member being engaged with the second switching member so that the second crank member reciprocally rotates about the second axis as the second switching member reciprocally moves along said second central axis; a first slider configured to rotate with the first crank member; and a second slider configured to rotate with the second crank member; a printed circuit board; a first wiring pattern (34, 35a, 35b) provided on one surface of the printed circuit board, the first wiring pattern (34, 35a, 35b) being disposed so that the first slider makes contacts with the first wiring pattern (34, 35a, 35b) during the rotation of the first crank member; and a second wiring pattern (36, 37a, 37b, 37c) provided on one surface of the printed circuit board, the second wiring pattern (36, 37a, 37b, 37c) being disposed so that the second slider makes contacts with the second wiring pattern (36, 37a, 37b, 37c) during the rotation of the second crank member.